-
Plasmonic absorption enhancement of MAPI-based perovskite solar cell with nanoparticles array Optik (IF 3.1) Pub Date : 2024-03-11 Neda Ahmadi, Muheeb Ahmad Alkhalayfeh
In this work, we propose a MAPI-based p-i-n perovskite solar cell with architecture ITO/PEDOT:PSS/MAPI/Rhodamine/TiO2/Ag. Although MAPI-based solar cells have prominent performance, there are some challenges for these devices. Poor optical absorption at near-infrared wavelengths is the most important challenge for MAPI-based solar cells. The effect of three kinds of periodic array nanoparticles on
-
Optimizing Sb2Se3 Thin-Film Solar Cells: A Comprehensive Simulation Study of Multiple Influential Factors Optik (IF 3.1) Pub Date : 2024-03-08 Salaheddine Moujoud, Bouchaib Hartiti, Samira Touhtouh, Fouad Belhora, Abdelowahed Hajjaji
This article presents a comprehensive simulation study of SbSe-based thin-film solar cells, exploring critical parameters that influence their performance and efficiency. We demonstrate that tuning the SbSe thickness offers a versatile approach to optimize light absorption and charge transport, offering promising avenues for efficiency enhancement. Furthermore, we highlight the pivotal role of carrier
-
Synthesis of Novel Ag/AgBr/K0.4Y0.7Sb2O6.25 Nanocomposite with Enhanced Photocatalytic Properties Optik (IF 3.1) Pub Date : 2024-03-07 Asha Siddikha, Mohd Abdul Mujeeb, K. Swetha, Boodida Sathyanarayana, Muga Vithal
Devoloping efficient wastewater treatment photocatalysts capable of improving water quality is undoubtedly one of the main problems of present society. In recent years, novel plasmonic photocatalysts have shown new possible applications in photocatalytic wastewater treatment due to their unique properties. In this work, a novel Ag/AgBr/KYSbO composite was successfully fabricated by photo-reduction
-
An investigation of the influence of various factors on the electrical performance of a (CuGaS2) -based thin-film solar cell using SCAPS-1D software Optik (IF 3.1) Pub Date : 2024-03-07 Janani Arunachalam, Kalainathan Sivaperuman
Applying photovoltaics to harvest solar energy is in high demand at the global level. In this study, the modeling tool SCAPS-1D is used to design the cell structure with indium sulfide as a buffer layer, Copper gallium sulfide (CuGaS) semiconductor compound as the absorber layer, and un-doped and n-doped zinc oxide as the window layer. This study aims to establish an optimal absorber and buffer layer
-
The Solvatochromic Effect of Functionalized 6-Aminoracil Derivatives In light of DFT: FT-IR, TD-DFT, NBO, and FMO Studies Optik (IF 3.1) Pub Date : 2024-03-07 Ahmet Turan Ekici, Nihat Karakuş
Uracil-based compounds have increasing attention in material design for different applications as well as pharmaceutical purposes. Accordingly, the key electronic reasons underlying the solvatochromic effect and possible activity features by using quantum chemical computations should be explored in detail. This work focuses on the structural, electronic, and optical properties of the aminouracil derivatives
-
V2O5 Based Nanocomposites for the Adsorption and Photocatalytic Degradation of Methylene Blue Dye Optik (IF 3.1) Pub Date : 2024-03-07 Dinesh J. Ahirrao, Sneha N. Tambat, Shital S. Sonawane, Suresh T. Alone, Rashmi D. Pathrikar
In the present work, vanadium pentoxide-metal organic framework (VO-MIL 125 MOF) and vanadium pentoxide-reduced graphene oxide (VO-rGO) nanocomposites were successfully synthesized using a facile low-temperature hydrothermal treatment. These synthesized catalysts were used to study the adsorption capacity and photocatalytic degradation of methylene blue (MB) dye in aqueous solutions, under dark and
-
Physical properties and mechanical stability of AlCu:XO2 (X=Hf, Zr) alloys from density functional theory (DFT): Prediction and analysis for photocatalysis and electronic devices applications Optik (IF 3.1) Pub Date : 2024-03-07 Y. Zidi, O. Khaldi
The electronic, optical and mechanical properties of AlCu:XO alloys (X=Hf, Zr) are investigated for the first time through the Density Functional Theory (DFT). The aim of this work is to evaluate the impact of aluminum-copper alloys on the physical response of high-k materials for both electronic and photocatalysis devices applications. It will be shown that 25% of Al is the appropriate composition
-
Performance investigation of ShapeDoKu variant for PV formations under realistic assumptions of shading situations Optik (IF 3.1) Pub Date : 2024-03-07 Anurag Singh Yadav, Ajay Kumar Maurya, V. Mukherjee
During shading conditions, performance of physical relocation techniques for PV formations is more effective than total cross-tied (TCT) type of PV formation. The main purpose of physical relocation technique is to rearrange the physical position of PV modules in TCT formation without changing the electrical connections. Due to relocation of PV modules, the lengths of required wires are increased.
-
Low-cost, stable all-inorganic charge transporting layer based FAPI perovskite solar cells achieving ≈ 26% efficiency using SCAPS-1D Optik (IF 3.1) Pub Date : 2024-03-07 Monisha Nayak, Abu Jahid Akhtar, Sudip K. Saha
The superior opto-electronic properties of metal halide perovskites have uncovered great potential as light harvesters for thin-film photovoltaics, capturing the dominant research trend for over a decade now. While Perovskite Solar Cells (PSCs) depict promising results of a successful photovoltaic technology, further replacement of conventional charge transporting layers (CTLs) with inorganic counterparts
-
Synthesis of green fluorescent, energy efficient nitrogen doped carbon quantum dots Optik (IF 3.1) Pub Date : 2024-03-07 Iti Diwan, Gagan Kant Tripathi, Purnima Swarup Khare
The study of a simple and facile microwave heating technique is introduced for the synthesis of nitrogen-doped carbon quantum dots (N-CQDs) with the most abundant and cheap chemicals- Citric acid (carbon source & precursor) and Urea (nitrogen source & reducing agent). TEM and DLS results indicated that such prepared N-CQDs have an average particle size of ~0.8nm and high Quantum Yields of ~24.69%.
-
Supply Chain Design of Sustainable Photovoltaic Systems Considering Robust-Fuzzy Pricing and Optimization Optik (IF 3.1) Pub Date : 2024-03-07 Amir Amiri, Hossein Amoozad Khalili, Ahmad Mehrabian
Nowadays, the growing need for energy has led to an increasing use of fossil fuels, the issue leading to the devastating environmental effects, including global warming. Thus, the requirement of renewable technologies, particularly photovoltaic systems under such conditions is felt more than ever, which would result in reducing the environmental pollution. As a result, in the present research, a model
-
Evaluation and Comparison of Zinc Oxide and Zinc Sulphide Nanoparticles Derived from Sol-Gel Method for Supercapacitance Performance Optik (IF 3.1) Pub Date : 2024-03-07 Vishwajeet V Aherkar, Sidhaling B. Bhairunagi, Muddsar L. Gaur, Rekha M Ovhal
Zinc oxide and zinc sulphide nanoparticles were produced using the sol-gel method. We employed nanoparticle identification methods for the examination of several factors. The precursor solutions are converted into an intermediate state that mimics gel during the sol-gel process, and then solidified. This technique provides fine control over the size, shape, and crystallinity of the resultant ZnO nanoparticles
-
Proposal and Design of Organic/CIGS Tandem Solar Cell: Unveiling Optoelectronic Approaches for Enhanced Photovoltaic Performance Optik (IF 3.1) Pub Date : 2024-03-07 Walid Zein, Tarek I. Alanazi, Ahmed Saeed, Mostafa M. Salah, Mohamed Mousa
Solar cells are promising devices for converting sunlight into electrical energy. Tandem solar devices, which combine multiple sub cells with complementary absorption spectra, offer a potential strategy to enhance the overall power conversion efficiency (PCE). In this work, the design and performance of organic/CIGS tandem solar devices are investigated. The initial tandem cell comprises two sub cells
-
Combined transmission of PPM and WSK modulated optical signal over free space optical link enabling physical layer security Optik (IF 3.1) Pub Date : 2024-03-07 Faria, Jawad Mirza, Abdulah Jeza Aljohani, Muhammad Ijaz, Salman Ghafoor
This work proposes a novel technique for transmission of data from two different sources by using a combination of wavelength shift keying (WSK) and pulse position modulation (PPM) over a free space optical (FSO) link. It has been shown that the proposed technique has potential of improving the physical layer security of FSO links, which is a growing concern due to considerable interest in the employment
-
Analyzing optical soliton propagation in perturbed nonlinear Schrödinger equation: A multi-technique study Optik (IF 3.1) Pub Date : 2024-03-07 Dean Chou, Hamood Ur Rehman, Rizwan Haider, Taseer Muhammad, Tsi-Li Li
In this study, the extended hyperbolic function method and unified solver method are applied to examine the propagation of optical solitons in perturbed nonlinear Schrodinger equation. The proposed techniques are characterized as simpler, more concise, and straightforward. They allow for the extension of the class of solutions and the retrieval of a diverse range of optical solitons, including singular
-
Planar terahertz multi-resonator meta-waveguide based upon strongly coupled nested split-ring resonator Optik (IF 3.1) Pub Date : 2024-03-07 Maidul Islam, Anshul Bhardwaj, Mainuddin, Gagan Kumar
In this paper, we propose terahertz (THz) meta-waveguide geometry based on one-dimensional array of nested split-ring resonators (SRRs) comprising three split gaps. The meta-waveguide geometry consists of three layers of materials namely copper, dielectric and meta-molecules. The meta-molecules of aluminum with nested split gaps are placed periodically in one dimension along the wave propagation direction
-
Electrochemical impedance spectroscopy analysis of dye-sensitized solar cells composed of electrospun composite photoanodes: A comparative study of natural and synthetic sensitizers Optik (IF 3.1) Pub Date : 2024-03-06 Jamal Mohammadian, Shahriar Osfouri, Tahmineh Jalali, Ahmad Jamekhorshid
In this study, a transmission line model is applied to the electrochemical impedance spectroscopy (EIS) data of the fabricated dye-sensitized solar cells (DSSCs) to evaluate the charge transfer mechanism through the cells. Natural dye from black plum () fruit was used as a cell sensitizer (SC-DSSC) and compared its photovoltaic and electron transport capabilities to those of a cell using a synthetic
-
Predicting structural, elastic, and optoelectronic properties of oxide perovskites HfXO3 (X =Be, Mg) employing the DFT approach Optik (IF 3.1) Pub Date : 2024-03-06 Saima Naz Khan, Aiman Jehan, Mudasser Husain, Nasir Rahman, Vineet Tirth, Saima Ahmad Shah, Muhammad Uzair, Muhammad Yaqoob Khan, Nourreddine Sfina, Muawya Elhadi, Afraa Alotaibi, Aurangzeb Khan
This study conducts a comprehensive exploration of the structural, electronic, elastic, and optical properties of HfXO (X=Be, Mg) perovskite compounds, employing density functional theory (DFT) within the WIEN2k code. Employing the Birch Murnaghan fitting technique, our structural evaluation establishes the structural stability of these materials, with optimized lattice constants underscoring their
-
Preparation and Characterization of ZnO/CuO Nanocomposites Thin Films for Highly Efficient Visible-Light Photocatalysis of Acriflavine Dye Optik (IF 3.1) Pub Date : 2024-03-06 Fatima Allawi, M.A. Mahdi, Marwah J. Kadhim, Adel H. Omran Alkhayatt
Chemical bath deposition (CBD) was used to grow ZnO nanorods on glass substrates. Grown ZnO nanorods are dipped in a copper nitrate trihydrate [Cu(NO).3HO] solution at 90 C for 30 min before being annealed at 400 C for 1 hour to convert Cu ions to CuO nanoparticles, forming a ZnO/CuO thin films nanocomposite. Images obtained from a Field Emission Scanning Electron Microscope (FESEM) indicated that
-
Highly efficient (V2O5)0.91Zn0.09 powdered catalyst for water organic pollutant elimination. Optik (IF 3.1) Pub Date : 2024-03-06 E. Kh Shokr, Sh. A. Elkot, Moumen S. Kamel, H.M. Ali
(VO) Zn powdered samples with different light doping levels (x = 0.03-0.09) were prepared by a solid-state thermal reaction and studied by X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), energy dispersive analysis (EDAX), and optical diffuse reflectance spectroscopies. The prepared samples has been revealed that the increments in Zn-doping levels accompanied by vacuum
-
Fiber optic refractive index sensing using an inline dual semi-distributed interferometer Optik (IF 3.1) Pub Date : 2024-03-02 Alina Adilkhanova, Marzhan Nurlankyzy, Sakengali Kazhiyev, Wilfried Blanc, Aliya Bekmurzayeva, Daniele Tosi
In this work, we present a fiber optic refractive index (RI) sensor based on a dual inline semi-distributed interferometer (SDI) device. The SDI is formed within a telecom-grade optical fiber by simply splicing a short length of a high-scattering fiber; the presence of a high density of scattering centers induces a distributed cavity effect, forming a low-finesse interferometer. Here, we propose an
-
A semi-blind deconvolution method to estimate and remove optical aberrations Optik (IF 3.1) Pub Date : 2024-03-02 Alireza Arandian, Mohammad Ismail Zibaii, Hamid Latifi
Optical aberrations (ABRs) always hinder high-quality imaging, and designers make a vast effort to correct them. We propose a computational method to estimate and remove an ABR that could blur an image. It works upon the combination of an elementary blind deconvolution process and finding the best correlation between the estimated point spread function (PSF) and a pre-defined basis set of ABR-related
-
Optical lens optimization design and tolerance analysis for a depth camera Optik (IF 3.1) Pub Date : 2024-03-01 Wen-Shing Sun, Ying-Shun Hsu, Yi-Hong Liu, Chuen-Lin Tien, Yi-Lun Su, Shiang-Shiuan Tsai, Ching-Cherng Sun
This paper describes a depth camera lens design composed of eight glass lenses, where the field of view is 100°, the focal length is 1.88mm, and the F/# is 2. The lens design requires the lens to be fixed and the object distance to be fixed at -745.964mm. The depth of focus ranges from -0.0047mm to 0.0096mm and can be obtained by selecting a spatial frequency of 60 lp/mm for the Through-focus MTF optimization
-
A general-purpose spectroscopic camera for single-board computers Optik (IF 3.1) Pub Date : 2024-02-27 S. Vasireddy, A. Meldrum
A low-cost consumer-grade spectroscopic system offers potential applications in many fields. Linear variable optical filters (LVOFs) placed in front of imaging sensors are one of the most promising avenues to realize this goal. In this work, we built a spectroscopic system by depositing an LVOF directly onto the protective window of OV5647 color and OV9281 monochrome imaging sensors for the Raspberry
-
Jacobian elliptic wave trains in fourth-order dispersive nonlinear Schrödinger equation and the modulational instability Optik (IF 3.1) Pub Date : 2024-02-27 Thokala Soloman Raju, Houria Triki
We analytically and numerically explore the existence of explicit exact Jacobian elliptic solutions of a nonlinear Schrödinger model with fourth-order dispersion and weak nonlocality. We delineate the parameter domain in which these highly dispersive doubly periodic waves balanced by the weak nonlocality and Kerr nonlinearity exist. Additionally, we have studied the modulational instability (MI) of
-
Comparative performance analysis of poly (3-hexylthiophene-2, 5-dial) and [6, 6]-phenyl-C61 butyric acid methyl ester-based organic solar cells in bulk-heterojunction and bilayer structure using SCAPS Optik (IF 3.1) Pub Date : 2024-02-24 Poroma Afrin, Md. Nasir Uddin
This work is concerned with the design and photovoltaic performance study of organic semiconducting materials-based solar cells using a SCAPS simulator. Organic solar cells are one form that absorbs light and produces electricity. They exhibit high power conversion efficiency, low manufacturing costs, lightweight, and flexibility which makes them a promising technology for renewable energy. We developed
-
High sensitivity fiber SPR sensor based on InSe nanosheets and Au nanoparticles Optik (IF 3.1) Pub Date : 2024-02-23 Li-An Chen, Nuerguli Kari, Bo Yin, Rui-Qin Yao, Qi Wang
Surface Plasmon Resonance (SPR) fiber sensors are widely used in the field of biosensing. However, there are still issues of low sensitivity and poor stability in practical detection processes. This paper proposes a highly sensitive fiber SPR sensor based on InSe nanosheets and Au nanoparticles. This paper investigates the enhancement effects of different thicknesses of InSe films inserted between
-
Simulation on mass removal by recoil pressure, thermal stress, and bubble growth of concrete irradiated by a millisecond Nd: YAG pulsed laser Optik (IF 3.1) Pub Date : 2024-02-23 Khwairakpam Shantakumar Singh, Ashwini Kumar Sharma
The present paper reports on the study of millisecond pulsed Nd: YAG laser ablation of concrete material using the finite element method simulation to elucidate the complex mass removal processes such as melt ejection by recoil pressure, spallation as a result of thermal stress and gas bubble growth which are not well documented. The simulated results showed that the mass removal of concrete by melt
-
Dynamic behavior of explicit elliptic and quasi periodic-wave solutions to the generalized [formula omitted]-dimensional Kundu–Mukherjee–Naskar equation Optik (IF 3.1) Pub Date : 2024-02-21 M, a, r, w, a, n, , A, l, q, u, r, a, n
This paper introduces novel explicit traveling solutions to the generalized -dimensional Kundu–Mukherjee–Naskar equation, a model relevant in optical fiber pulses, fluid dynamics, medical imaging, and ocean rogue waves. We propose rational form functions that incorporate both sine and cosine variables or sinh and cosh variables as potential solutions to the model. Subsequently, we utilize 3D diagrams
-
Hybrid mode-locked fiber laser based on nonlinear optical loop mirror and manganese phosphorus triselenide (MnPSe3) arc-shaped fiber Optik (IF 3.1) Pub Date : 2024-02-21 H. Ahmad, M.U.M. Ithnahaini, M.Z. Samion
This study investigates a hybrid mode-locked fiber laser incorporating manganese phosphorus triselenide (MnPSe) saturable absorber and nonlinear optical loop mirror (NOLM), yielding profound insights into its potential and performance. The hybrid mode-locked laser showcased an output spectrum centered at 1549nm with an expanded 3-dB bandwidth of 12.25nm. It generates remarkably narrow pulses, with
-
All-optical flip-flop by carbon/metal nanostructures in a multi-wave mixing Optik (IF 3.1) Pub Date : 2024-02-16 Geselle García-Beltrán, Cecilia Mercado-Zúñiga, Gina Gallegos-García, Puja Kumari, Claudia Lizbeth Martínez-González, Carlos Torres-Torres
This work presents a design of a flip-flop controlled by the nonlinear optical response exhibited by a dynamic distribution of nanostructures in a liquid. Silver decorated carbon nanotubes suspended in ethanol were employed. The flip-flop proposed corresponds to a probabilistic NAND latch. The nonlinear nanofluids were studied by two-wave mixing experiments with nanosecond pulses at 532 nm wavelength
-
Wideband MIMO Configuration With Mutual Coupling Reduction and Better Isolation Using the Combination of Electric Field LC Resonator and Swastik Resembled Structure Optik (IF 3.1) Pub Date : 2024-02-16 Vijay Kumar Sahu, Rajyalakshmi Valluri, P.V. Sridevi
This work explains the design and development of a small, wide-ranging antenna for millimetre wave (mm-Wave) and 5G technology and their applications, along with the configuration to set up as a multiple-input multiple-output (MIMO) system. Rogers RT/duroid 5880 substrate material, which has a height of 1.575mm, is used for fabricating the antenna. It possesses a compact overall size of 30 × 30 mm
-
Nanosecond-pulse fiber laser mode-locked with polyaniline saturable absorber Optik (IF 3.1) Pub Date : 2024-02-15 Aeriyn D. Ahmad, Norrima Mokhtar, Ahmad H.A. Rosol, Hamzah Arof, Retna Apsari, Sulaiman W. Harun
We prove that mode-locking of an Erbium-doped fiber laser (EDFL) with a Polyaniline (PANI) saturable absorber (SA) can produce nanosecond pulses at repetition rate of 962 kHz in the elongated ring cavity. The SA is fabricated by embedding a PANI into PVA. The conducting polymer-based SA exhibits a good optical nonlinear property with a modulation depth of 2.3%. The laser operated in nanosecond regime
-
Optical structural and radiation shielding efficiency of vanadium-doped LZBS glass Optik (IF 3.1) Pub Date : 2024-02-15 B.M. Alotaibi, Thaqal M. Alhuzaymi, Mohammed F. Alotiby, Sayed A. Makhlouf, Kh.S. Shaaban, E.A. Abdel Wahab
By using the classic melt-quench method, a glass system including silicon-doped vanadium ions, lithium, zinc, and boron was fabricated with the following formula, 27SiO-2ZnF-53BO- xVO-(18-x) LiO- with x = 0.0, 0.25, 0.5, 1, and 2 mol%. XRD was used to confirm amorphous status. Density, molar volume, oxygen packed densities and Inter-nuclear distance were determined. The optical characteristics were
-
Exploration of unexpected optical mixed, singular, periodic and other soliton structure to the complex nonlinear Kuralay-IIA equation Optik (IF 3.1) Pub Date : 2024-02-15 Mujahid Iqbal, Dianchen Lu, Aly R. Seadawy, Faizah A.H. Alomari, Zhanar Umurzakhova, Nahaa E. Alsubaie, Ratbay Myrzakulov
In this research work, we explored novel soliton solutions to the complex nonlinear Kuralay-II (K-IIA) equation on the bases of computational simulation. This complex nonlinear equation is used in many fields such as, optical fibers, ferromagnetic materials and nonlinear optics. We utilized the extended simple equation method on complex nonlinear Kuralay-IIA equation and extracted the unexpected soliton
-
Crystallization kinetics and structural development of Bi2GeO5 glass-ceramics fabricated by the modified incorporation technique Optik (IF 3.1) Pub Date : 2024-02-11 Surapong Panyata, Pratthana Intawin, Marisa Takong, Anucha Watcharapasorn, Arnon Kraipok, Sukum Eitssayeam, Kamonpan Pengpat
This study focuses on the fabrication and crystallization kinetics of bismuth germanate (BiGeO) crystals in glass ceramics. Bismuth germanate glass-ceramics were produced from a base glass containing 58.4 mol% BiO, 23.4 mol% GeO, and 18.2 mol% BO using a modified incorporation technique. Differential thermal analysis was used to determine the crystallization temperature. The X-ray diffraction results
-
Investigation on visible-light induced photocatalytic activity for pure, Ce:doped TiO2 and B:Ce co-doped TiO2 catalysts Optik (IF 3.1) Pub Date : 2024-02-10 M. Sangeetha, S. Kalpana, N. Senthilkumar, T.S. Senthil
In this study, the photocatalytic activity of pristine and Boron (B) - Cerium (Ce) co-doped titanium dioxide (TiO) have been investigated towards the degradation of aqueous solution of Methylene Blue (MB) dye under visible light activity. The B:Ce co-doped TiO catalyst was successfully prepared by co-precipitation method. The structural, optical, and morphological properties of the synthesized samples
-
Improvement of dye degradation by photocatalysis and synergistic effect of sonophotocatalysis processes using CaMoO4/g-C3N4 heterojunction Optik (IF 3.1) Pub Date : 2024-02-10 M.A.M. Castro, R.L. Tranquilin, A.E.M. Paiva, M.D. Teodoro, M.A. Correa, F.V. Motta, M.R.D. Bomio
The development of heterostructures between different semiconductors for environmental decontamination applications requires adequate adjustments of semiconductor concentration and optical band gap to improve its properties. Herein, we report the synthesis of type II CaMoO/g-CN heterojunction by the microwave-assisted hydrothermal method with different molar percentages of g-CN (between 40% and 70%)
-
Thermal modeling of perovskite solar cells: Electron and hole transfer layers effects Optik (IF 3.1) Pub Date : 2024-02-10 Asghar Moradi, Morteza Maleki, Seyyed Reza Hosseini, Mahsa Bahramgour, Nagihan Delibas, Aligholi Niaei
The thermal behavior of perovskite solar cells (PSCs) can significantly affect their performance, and its investigation leads to a deep understanding of PSCs optimization. In this paper, the electrical and thermal behavior of a PSC is studied. To this end, the optical generation rate is calculated for the standard AM 1.5 solar spectrum and then is applied to calculate the current-voltage characteristics
-
Non-destructive morphological screening for the assessment of postharvest storage effect on pears stored with apples using optical coherence tomography Optik (IF 3.1) Pub Date : 2024-02-10 Jannat Amrin Luna, Ruchire Eranga Wijesinghe, Seung-Yeol Lee, Naresh Kumar Ravichandran, Sm Abu Saleah, Daewoon Seong, Hee-Young Jung, Mansik Jeon, Jeehyun Kim
The use of a limited and inadequate storage facility for the storage of multiple food items for an extended period of time results in the loss of structural integrity and freshness while storing fruit in confined single storage without adequate individual packaging methods can result in morphological changes and the degradation of the quality of the fruit. In this study, the effects of postharvest
-
Multiwavelength fiber laser based on enhanced bidirectional SOA utilizing Lyot filter Optik (IF 3.1) Pub Date : 2024-02-10 Airull Azizi Awang Lah, Abdul Hadi Sulaiman, Fairuz Abdullah, Nelidya Md Yusoff
We demonstrated a multiwavelength fiber laser (MWFL) based on two bidirectional semiconductor optical amplifiers (SOAs) and a Lyot filter. The structure is enhanced by placing two -SOAs in a bidirectional region to improve the lasing performance. This resulted in a higher extinction ratio (ER) of 36.05 dB, as earlier work only achieved a maximum extinction ratio (ER) of 17 dB utilizing an SOA based
-
Ammonia detection in water using balloon-like fiber optic sensor coated with oxazine and PDMS Optik (IF 3.1) Pub Date : 2024-02-10 Nurfatihah Che Abd Rashid, Noran Azizan Cholan, Kim Gaik Tay, Azra Munirah Mat Daud, Nurul Atika Nabila Jaharudin, Nazrah Ilyana Sulaiman, Nor Hafizah Ngajikin
This paper presents the detection of ammonia in water using a balloon-like fiber optic sensor coated with Oxazine 170 perchlorate and polydimethylsiloxane (PDMS). The sensor was prepared by removing a middle portion of a plastic optical fiber cladding using acetone. The uncladded fiber optic sensor was then bent into a balloon-like shape using a 3D printed fiber holder to fix the diameter of the bent
-
Exploring the potential of MAGeI3 perovskite cells with novel charge transport material optimization Optik (IF 3.1) Pub Date : 2024-02-10 Shayan Tariq Jan, Muhammad Noman
Germanium-perovskites have emerged as alternatives to lead-perovskites due to similar photovoltaic properties but lower efficiency (PCE) because of a larger band-gap. However, the efficiency of the cells can be enhanced by using novel charge transport materials (CTL) and optimizing design parameters. In this work, methyl-ammonium germanium triiodide (CHNHGeI) cells were analyzed in detail using SCAPS-1D
-
Magneto-plasmonic-induced random laser in two-dimensional FeB square array Optik (IF 3.1) Pub Date : 2024-02-09 Majid F. Haddawi, J.M. Jassim, S.M. Hamidi
This work aims to enhance the lasing parameters of a random laser using magneto-plasmonic FeB@Au as scattering points. Two-dimensional FeB square arrays are covered by thin films of Rhodamine 6 G from the bottom and top, respectively. For this purpose, two-dimensional structures were fabricated using the soft lithography method onto the polydimethylsiloxane (PDMS) substrate and deposited with a 35 nm
-
Structure, morphology, composition, optical properties and catalytic activity of nanomaterials CuO, NiO, CuO/NiO using methylene blue Optik (IF 3.1) Pub Date : 2024-02-09 E. Arulkumar, S. Thanikaikarasan
In this work pristine CuO, NiO and CuO/NiO-1 nanocomposite (NC’s) and Triton X 100 (TX-100) added CuO/NiO-2 NC’s was prepared by simple co-precipitation method. The synthesized samples was characterized using X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), Field Emission Scanning Electron Microscopy with energy-dispersive X-ray (EDX) analysis, X-ray Photoelectron Spectroscopy (XPS)
-
Performance investigation of physically relocation arrangement with different associations of bypass diode during shadings Optik (IF 3.1) Pub Date : 2024-02-09 Anurag Singh Yadav, Ajay Kumar Maurya, V. Mukherjee
This paper presents a performance investigation of three different types of photovoltaic (PV) arrangements under various shading situations. The PV arrangements are categorized as series-parallel (SP), total cross-tied (TCT), and physical relocation arrangement (PRA). Furthermore, these PV arrangements are classified based on three different types of bypass diode associations: without bypass diode
-
Transitions between non-convex to hyperbolic plasmonic regions in the Beryllene-Graphene-Beryllene trilayer structure Optik (IF 3.1) Pub Date : 2024-02-09 Badie Ghavami, Elnaz Rostampour, Catherine Stampfl
Meta-materials are an important class of materials in condensed matter physics which have unusual optical properties. They can be used to regulate light and wave propagation, in which natural hyperbolic and non-convex plasmons are characteristics that can be observed. In this paper, we study the optical properties of the Beryllene-Graphene-Beryllene (BeCBe) hetero-trilayer and show that this material
-
Luminescence properties of Eu3+-doped potassium-gadolinium-phosphate glasses Optik (IF 3.1) Pub Date : 2024-02-07 D. Yodkantee, A. Prasatkhetragarn, N. Wantana, N. Chanthima, S. Kothan, N. Intachai, R. Yimnirun, H.J. Kim, J. Kaewkhao
EuO-doped KO-GdO-PO glasses were fabricated using the melt-quenching technique. The result indicates that the glasses' density and refractive index increase while the molar volume decreases from 0.05 to 0.5 mol% and then increases from 0.5 to 2 mol% with increased EuO concentration. The absorption spectra in the UV-Vis and NIR regions exhibit an energy transition from a ground state to possible excited
-
On 3D encryption schemes based on chaotic permutations and rotations with geometric stability Optik (IF 3.1) Pub Date : 2024-02-06 M.H. Annaby, M.E. Mahmoud, H.A. Abdusalam, H.A. Ayad, M.A. Rushdi
Three-dimensional point-cloud data has been enormously abundant with the emergence of 3D data acquisition, processing, and visualization technologies. Encryption algorithms have been recently introduced to ensure secure storage and communication for this type of data. Maintaining algorithmic correctness and the geometric stability are still key challenges towards the construction of reliable, trustful
-
Utilizing iron phthalocyanines absorber for the generation of Q-switched and mode-locked pulses Optik (IF 3.1) Pub Date : 2024-02-04 Nurul Izzah S. Wadi, Rosmalini A. Kadir, Zulzilawati Jusoh, Norizan Ahmed, Muhammad Imran M.A. Khudus, Sameer Salam
We demonstrated the generation of Q-switched and mode-locked erbium-doped fiber lasers (EDFLs) by utilizing iron phthalocyanines (FePc) based saturable absorber (SA). The SA film under investigation was fabricated by embedding the FePc compound into a polyvinyl alcohol (PVA) film. Upon integration into the EDFL cavity, we achieved a stable Q-switched pulse train at 1531.3nm when the pump power exceeded
-
Tuning the structural, morphological, and optical properties of zinc (8-hydroxyquinoline) thin films by laser-irradiation for optoelectronic applications Optik (IF 3.1) Pub Date : 2024-02-04 Fatma M. Amin, Ahmed M. El-Mahalawy, Kholoud T. Abdel-Salam, Mohamed Abdel-Salam
This research represents a deep study of the effect of laser irradiation on the structure, morphological, and linear/nonlinear optical properties of Znq thin films prepared by the thermal evaporating technique. After deposition, films were irradiated by continuous wave (CW) diode laser at different exposure times (0.5h, 1.0h,1.5h, and 2.0h). The analysis of the X-ray diffraction (XRD) patterns revealed
-
Optical properties and electric modulus studies of TSP: CH3COONa based biopolymer electrolytes Optik (IF 3.1) Pub Date : 2024-02-04 Anamitra Saha, Vijaya Kumar K., Krishna Jyothi N., Gnana Kiran M., Rao M.C.
The research of biopolymers for the creation of solid polymer electrolytes (SPE) for electrochemical devices has resulted from the green revolution. Various strategies have been used to build and characterise biopolymer-based membranes for proton and lithium-ion conduction. However, research on biopolymers based on sodium ions is uncommon in the literature. The solution cast approach is used in this
-
Lie symmetry analysis, conservation laws and soliton solutions by complete discrimination system for polynomial approach of Landau Ginzburg Higgs equation along with its stability analysis Optik (IF 3.1) Pub Date : 2024-02-03 Syed Tahir Raza Rizvi, Kashif Ali, Noor Aziz, Aly. R. Seadawy
In this article, we study Landau Ginzburg Higgs equation (LGHE) for Lie symmetries (LS), conservation laws (CLs) and soliton solutions via complete discrimination system (CDS) to polynomial method (CDSPM). We also discuss the qualitative analysis for our governing model with the help of stability analysis (SA). LGHE has huge applications in radially inhomogeneous plasma with constant phase relation
-
Realizing high-efficient multifunctional and tunable multiband THz metasurface for polarization and phase modulation Optik (IF 3.1) Pub Date : 2024-02-03 Ubaid Ur Rahman Qureshi, Shahid Basir, Munzza Ahmad, Abdul Jalal, Rehmat Iqbal, M.Ismail Khan
The demand for seamless design integration and miniaturization drives the importance of integrating multiple operations into a single tunable metasurface in the terahertz (THz) range. Despite significant efforts being dedicated to this field, the development of switchable metasurfaces with diverse functionalities continues to face substantial challenges. In this study, we propose a switchable multiband
-
Lower current density driven InGaN/GaN micro-LED with improved quantum efficiency Optik (IF 3.1) Pub Date : 2024-02-03 Chandra Prakash Singh, Kankat Ghosh
In this research article, we propose an engineered electron blocking layer (EBL) structure to address the efficiency degradation in InGaN/GaN multiple quantum well cyan-micro-LEDs grown along a polar orientation at lower current density (1A/cm²). The engineered EBL structures exhibit improved bandgap continuity that eliminates the creation of an energy pit in the conduction band and a spike in the
-
EPR and optical study of Mn2+ doped BaCO3 for potential yellow laser application Optik (IF 3.1) Pub Date : 2024-02-02 Brahim Abidine, Mondher Yahya, Chaker Bouzidi
Undoped and Mn doped BaCO, were synthesized using the autocombustion method. The powders obtained by autocombustion were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), electron paramagnetic resonance (EPR), and photoluminescence (PL). The orthorhombic phase is obtained just after autocombustion without
-
The enhanced optoelectronic, and thermoelectric nature of novel KXCuS3 (X = Zr, Hf) semiconductors: An inclusive ab-initio study Optik (IF 3.1) Pub Date : 2024-02-02 Muhammad Salman Khan, Banat Gul, Ghlamallah Benabdellah, Gulzar Khan, Bashir Ahmad, Saikh Mohammad Wabaidur, Ammar M. Tighezza, Hijaz Ahmad
The remarkable optoelectronic characteristics of chalcogenides with a quaternary structure have provoked considerable interest, notably due to their potential employment in solar energy conversions. Here we focused on the interaction of light and transport features in novel KXCuS (X = Zr, Hf) semiconductors. The calculations involved have employed cutting-edge computational technique that is based
-
Braiding of vortices in superpositions of Bessel–Gaussian beams for creation of high-contrast intensity structures Optik (IF 3.1) Pub Date : 2024-02-02 Paulius Šlevas, Sergej Orlov
Bessel vortices are well-known for their long focal region and the unique property of carrying angular momentum. These characteristics are desired in applications such as laser micromachining, optical trapping, and imaging. Interference of several non-diffracting vortical beams results in light fields with complex intensity distribution structure – many single charged positive and negative vortices
-
Spectroscopic investigation and local structure of Eu3+ ions in lead phosphate glasses for optical device applications Optik (IF 3.1) Pub Date : 2024-02-01 Ch. Basavapoornima, E. Masthanaiah, N. Vijaya, Shobha Rani Depuru, J. Kaewkhao, Wisanu Pecharapa, C.K. Jayasankar
Phosphate-based glasses are promising materials which are being employed for broad range of applications whereas Eu is an efficient activator due to its predominant D →F emission (red region). In this direction, an attempt has been made to investigate the effect of Eu ions doped lead phosphate glasses (PPbKANEu: PO+PbO+KO +AlO+NaO+EuO) to explore possible photonic device applications. Optical absorption
-
Investigating a Pb-free n-i-p perovskite solar cell with BFCO absorber using SCAPS-1D Optik (IF 3.1) Pub Date : 2024-01-29 Nassim Ahmed MAHAMMEDI, Afif BENAMEUR, Hamza GUEFFAF, Boualem MERABET, Osman Murat OZKENDIR, Shin-Ichiro SATO
Perovskite solar cells (PSCs) have emerged as promising photovoltaic (PV) devices and have received significant attention in recent years. However, the commercialization of Pb-based PSCs has been hindered by several factors, including Pb toxicity, despite achieving record levels of power conversion efficiency (PCE) over the past decade. Bi-based all-inorganic PSCs have the potential to be a viable