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Review of Mono- and Bifacial Photovoltaic Technologies: A Comparative Study IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-03-14 Tanvir M. Mahim, A. H. M. A. Rahim, M. Mosaddequr Rahman
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Dual-Wavelength Laser Power Converters Equipped With Intermediate Bands Compatible With Highly Efficient Solar Cells IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-03-11 Yasuhiko Takeda
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Coupled Process/Device Modeling and Point Defect Engineering of Cu(In,Ga)Se2 Solar Cells IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-03-05 Xiaofeng Xiang, David E. Sommer, Aaron Gehrke, Scott T. Dunham
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PV Plant Equipment Labels and Layouts Can Be Validated by Analyzing Cloud Motion in Existing Plant Measurements IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-28 Joseph Ranalli, William B. Hobbs
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Power Prediction of PV Modules Contaminated by Bird Droppings via an Image Thresholding Process IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-23 Seong-Hyeon Ahn, Gyu Gwang Kim, Jin Ho Choi, Yeong-Beom Kang, Jin Hee Hyun, Hyung-Keun Ahn
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Towards Polymer-Free, Femto-Second Laser-Welded Glass/Glass Solar Modules IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-21 David L. Young, Timothy J. Silverman, Nicholas P. Irvin, Daniel Huerta-Murillo, Bill Holtkamp, Nick Bosco
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IEEE Journal of Photovoltaics Information for Authors IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-20
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IEEE Journal of Photovoltaics Publication Information IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-20
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Photovoltaic Cell Defect Detection by Lock-In Thermography Using 2-D Gaussian Profile IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-16 Thiago M. Vieira, Ézio C. Santana, Tarso V. Ferreira, Douglas B. Riffel
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Investigation on Lightning-Induced Voltage for Photovoltaic System Considering Electromagnetic Coupling of Rooftop Structure IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-13 Xiao Zhong, Zhi Zheng, Qiuqin Sun, Danhua Chen, Wentao Yang, Jie Yuan, Feng Bin, Yishi Yue, Zezhong Sun
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Improved Cleaning Event Detection Methodology Including Partial Cleaning by Wind Applied to Different PV-SCADA Datasets for Soiling Loss Estimation IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-12 Shoubhik De, Narendra Shiradkar, Anil Kottantharayil
Soiling on photovoltaic (PV) systems reduces operating efficiency, requiring frequent cleaning and maintenance. To quantify soiling loss directly from the PV performance time-series data, an essential step is to detect cleaning events accurately. However, analyzing the time-series data of utility-scale PV plants comes with its own set of challenges. Sensors not calibrated or maintained correctly, missing
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A Novel Embedded System for Real-Time Fault Diagnosis of Photovoltaic Modules IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-12 Zakaria Ksira, Adel Mellit, Nicola Blasuttigh, Alessandro Massi Pavan
In this article, a novel embedded low-cost system for real-time fault diagnosis of photovoltaic (PV) modules is proposed. The idea aims to develop an embedded application to classify certain defects that can frequently occur on PV modules based on infrared (IR) images in different regions (desert and Mediterranean climates). The investigated faults are sand accumulation, dirt on PV modules, degradation
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Demonstration of a Monolithically Integrated Hybrid Device for Simultaneous Power Generation and Data Modulation IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-09 Emily Kessler-Lewis, Stephen J. Polly, Elijah Sacchitella, Seth M. Hubbard, Raymond Hoheisel
A three-terminal, monolithically integrated InP photovoltaic (PV) device with an InGaAs/InAlAs electroabsorption modulator for simultaneous power generation and data modulation has been designed and experimentally validated. A discrete modulator with a data rate approaching 1 Mbps with an on / off ratio of 1.20 was demonstrated. The InP power generating junction of the monolithic device attained an
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Impact of Additional PV Weight on the Energy Consumption of Electric Vehicles With Onboard PV IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-09 Neel Patel, Karsten Bittkau, Bart Elger Pieters, Evgenii Sovetkin, Kaining Ding, Angèle Reinders
Photovoltaics (PV) in onboard vehicle applications adds weight to an electric vehicle (EV), increasing the overall energy consumption. Although the added PV system weight is small compared with the vehicle weight, the power generated by PV is also very small compared with the power needed to propel an EV, making the effect of additional PV system weight on energy consumption a nontrivial topic to analyze
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Perovskite Solar Module Enabled IoT Asset Tracking for Wildlife Conservation IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-09 Vivek Babu, Rosinda Fuentes Pineda, Maciej Bizan, Adrian Wojak, Szymon Wierzowiecki, João Gervásio, Jakub Szklarz, Luigi Angelo Castriotta, Aldo Di Carlo
Perovskite technology has shown impressive improvement in the last decade. Here, the first global positioning system (GPS)-perovskite-powered application is showcased by integrating flexible perovskite modules (fPSMs) onto an animal tracking collar for powering the Internet of Things (IoT) device that monitors wildlife bison to preserve the species and its habitat. A prototype of a solar-powered collar
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Wet-Etching of Acoustically Spalled GaAs for Substrate Reuse IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-02-07 Anica N. Neumann, Pablo G. Coll, Mariana I. Bertoni, Myles A. Steiner, Emily L. Warren
Acoustic spalling is a promising technique for substrate reuse in the fabrication of gallium arsenide (GaAs) photovoltaic cells. However, the acoustic spalling process can leave the substrate with areas of rough surface morphology that can interfere with subsequent cell growth and processing. In this work, we investigate the use of wet etchants to smooth the surface of acoustically spalled GaAs substrates
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Evaluation of Surface Crack Formation in Photovoltaic Backsheets Using Fragmentation and Finite Element Simulations IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-01-31 Stefan Mitterhofer, Michael Kempe, Xiaohong Gu
Backsheet cracking is among the most commonly observed degradation modes of photovoltaic modules in the field. Cracks can reduce the ability of backsheets to fulfill their functions, such as protection of the modules from the environment or electrical insulation. This work presents an evaluation of the degradation and cracking propensity of two backsheets during accelerated IEC TS 62788-7-2 (International
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Application of Electroluminescence Imaging to Distinguish Ohmic and Non Ohmic Shunting in Inaccessible Cells Within a PV Module IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-01-30 Ravi Kumar, Vishal E. Puranik, Rajesh Gupta
Photovoltaic (PV) technology is susceptible to various defects and degradations. One such defect is shunts, which result in internal leakage paths, reducing cell performance and efficiency. Shunts can be categorised as either ohmic or non-ohmic based on the nature of sinking current with voltage. Understanding the nature of shunting is crucial for comprehending the physical phenomena occurring at shunted
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Forced Motion Activated Self-Alignment of Micro-CPV Solar Cells IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-01-29 Elisa Kaiser, Maike Wiesenfarth, Victor Vareilles, Martin Schneider-Ramelow, Stefan W. Glunz, Henning Helmers
In micro-concentrating photovoltaics (micro-CPV), the size of solar cells is reduced (<1x1 mm 2 ) compared to conventional CPV. However, the quantity and requirement for placement accuracy of solar cells is increased. To be economically competitive, a promising possibility for the die assembly is a high throughput and relatively unprecise pick and place process combined with surface tension-driven
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Wet-Chemically Grown Interfacial Oxide for Passivating Contacts Fabricated With an Industrial Inline Processing System IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-01-22 Byungsul Min, Philipp Noack, Bianca Wattenberg, Torsten Dippell, Henning Schulte-Huxel, Robby Peibst, Rolf Brendel
This article presents for the first time the application of wet-chemical interfacial oxide from an industrial inline processing system for poly-Si-based passivating contacts. An excellent passivation quality is achieved by creating an interfacial oxide with a very short exposure time of 90 s in ozonized water and by adjusting the annealing temperature in a tube furnace, resulting in surface recombination
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Analysis of Threshold Conditions for Cementation of Soiling on PV Modules and Telescope Mirrors IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-01-18 Guido Willers, Volker Naumann, Ronald Holzlöhner, Ralph Gottschalg, Klemens Ilse
To enhance the understanding of the high adhesion of dust particles on photovoltaic modules and telescope mirrors, glass, and mirror samples were subjected to soiling tests in laboratory and field experiments. The specific objective of this study was to investigate glass contamination on a microstructural level using light and scanning electron microscopy (SEM). In addition, the dusts were analyzed
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Rapid Thermal Annealing Effects on Passivation Quality of p-TOPCon Silicon Solar Cells IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-01-15 Arpan Sinha, Sagnik Dasgupta, Ajeet Rohatgi, Mool C. Gupta
Unlike the traditional tube-furnace annealing at 875 °C, rapid thermal annealing (RTA) and laser annealing offer flexibility, high throughput, and control of the heating and cooling rates and holding times for effective crystallization, dopant activation, and passivation quality in the B-doped p-TOPCon device. A comprehensive scientific understanding of the effects of RTA is required. Slower RTA heating
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Planet-Scale Energy Yield Potential of Next-Generation Bifacial, Multiterminal, Perovskite-Silicon Tandem Solar Farms IEEE J. Photovolt. (IF 3.0) Pub Date : 2024-01-15 Jabir Bin Jahangir, Muhammed Tahir Patel, Reza Asadpour, Muhammad Ryyan Khan, Muhammad A. Alam
To continue reducing the levelized cost of solar energy, the photovoltaics (PV) industry is developing higher efficiency perovskite-based tandem solar cells. Among the various options, the two-terminal (2T) tandem has traditionally garnered the most interest and is expected to enter the market soon. However, the bifacial 2T perovskite-silicon (PVK-Si) tandem cell, constrained by current-matching requirements
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Development of Solution-Processed Eco-Friendly Cs2SnI6 Double Perovskite Thin-Film Solar Cell IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-12-29 Nilesh Jaiswal, Vivek Pratap Singh, Chandra Prakash Singh, Deepak Punetha, Saurabh Kumar Pandey
This article reports a simple and efficient solution-processed method for designing stable Cs 2 SnI 6 double perovskite thin film solar cells utilizing Cesium iodide and SnI 4 in a 2:1 ratio. Better crystallinity in a Cs 2 SnI 6 film is typically associated with higher optical absorbance, lower carrier concentration, more carrier mobility, and improved air and thermal stability. This compound contains
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Enhanced Electron Transport at the n+ Poly-Si/LiF/Al Interface in n-TOPCon Silicon Solar Cells IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-12-28 Juan Tian, Kai Xu, Hongxu Jiang, Guangwei Wang, Yuan Liu, Peng Zhu, Deliang Wang
lithium fluoride (LiF) film has been employed as an electron-selective contact in optoelectronic devices. In this study, the effect of rapid thermal processing (RTP) on n-type tunnel oxide passivated contact (n-TOPCon) silicon solar cells using LiF/Al as the electrodes was investigated. Enhanced electron transport at the n + poly-Si/LiF/Al interface of n-TOPCon solar cells after RTP was observed. X-ray
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A Broadband Multilayer Antireflection Coating for Thin Film CdSeTe/CdTe Solar Cells IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-12-25 Adam M. Law, Luksa Kujovic, Mustafa Togay, Rachael C. Greenhalgh, Luis C. Infante-Ortega, Xiaolei Liu, John M. Walls
Thin film cadmium telluride (CdTe) photovoltaics (PV) is the most successful second-generation PV technology, with a current installed capacity of over 30 GWp, predominantly at utility scale. Recent improvements in the buffer layer of the device, switching from cadmium sulphide (CdS) to transparent magnesium-doped zinc oxide (MZO), tin oxide (SnO $_{2}$ ), or zinc oxide (ZnO), and the addition of selenium
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Editorial Introduction to the January 2024 Issue of the IEEE Journal of Photovoltaics IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-12-22 Angus Rocket
I also call your attention in particular to six papers invited for contribution from the IEEE Photovoltaic Specialists Conference (PVSC). These include two papers related to Si technology and two related to module design and reliability. These works were considered to be among the most important or impactful at the PVSC last summer, and these, along with those in the November issue, represent the bulk
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The Impact of Hot Injection Reaction Temperature on the Properties of Cu2ZnSnS4 Nanocrystal Thin Films for PV Devices IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-12-13 Asaad Alluhaybi, Douglas Halliday, Marek Szablewski, Leon Bowen
Cu 2 ZnSnS 4 (CZTS) is a p-type absorber layer semiconductor, which is a promising candidate material for advanced solar cell devices. CZTS nanoparticle thin films were synthesized via the hot-injection spin-coating method. Nanoparticle inks were deposited on soda lime glass substrates. Different reaction temperatures during synthesis were investigated by using X-ray diffraction (XRD), focused ion
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Design and Fabrication of CdTe//Si Four-Terminal Mechanical Stacked Solar Cell IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-12-12 Yujie Zheng, Xin Zhang, Xiutao Yang, Yunpu Tai, Jingquan Zhang, Bing Li, Lianghuan Feng, Chebotareva Alla, Amangel'di Kamalov, Guanggen Zeng
As single-junction devices are becoming increasingly difficult to achieve higher efficiencies, a great amount of design and fabrication of multijunction solar cells has been reported. There have been many independent studies on silicon and II-VI photovoltaic materials, but their integration to form II-VI/crystalline silicon tandem solar cell is still relatively rare. In this work, the structure of
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Hydrogen Sulfide Passivation for p-Type Passivated Emitter and Rear Contact Solar Cells IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-12-11 Tasnim Kamal Mouri, Ajay Upadhyaya, Ajeet Rohatgi, Young-Woo Ok, Vijaykumar Upadhyaya, Brian Rounsaville, Amandee Hua, Dirk Hauschild, Lothar Weinhardt, Clemens Heske, Ujjwal K. Das
This work reports on the application of sulfur (S)-passivation to passivated emitter and rear contact (PERC) solar cells. The emitter surface was passivated by hydrogen sulfide (H 2 S) gas phase reaction and capped by a hydrogenated amorphous silicon nitride (a-SiN x :H) layer. The sulfur passivation on a symmetrically n + diffused emitter is shown to lead to an emitter saturation current density (J
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Getting Ahead of the Curve: Assessment of New Photovoltaic Module Reliability Risks Associated With Projected Technological Changes IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-12-07 Jarett Zuboy, Martin Springer, Elizabeth C. Palmiotti, Joseph Karas, Brittany L. Smith, Michael Woodhouse, Teresa M. Barnes
Maintaining the reliability of photovoltaic (PV) modules in the face of rapidly changing technology is critical to maximizing solar energy's contribution to global decarbonization. Our review describes expected changes in PV technology and their impacts on performance and reliability. We leverage PV market reports, interviews with PV researchers and other industry stakeholders, and peer-reviewed literature
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An Efficient S and Se Co-Annealing Strategy for Performance Enhancement of Solution-Processed Submicron CuIn(S,Se)2 Solar Cells IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-12-05 Yao Gao, Guanchao Yin, Yong Li, Tristan Köhler, Ihab Kardosh, Martina Schmid
Solution-processed CuIn(S,Se) 2 (CISSe) solar cells with a submicron absorber (500 nm < thickness < 1 μm) can effectively reduce the deposition time and manufacturing cost. However, both, sensitive shunt paths and serious rear interface recombination limit the performance of submicron CISSe solar cells. In this work, Cu-In-S precursor films are comparatively annealed under Se or Se and S conditions
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The Impact of N-Doped Carbon Quantum Dots on Dye-Sensitized Solar Cells Operating Under Diffused- and Low-Light Intensity IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-12-04 Mona Samir, Ahmed M. Agour, Zahraa Ismail, Hassan Nageh, Sameh O. Abdellatif
This study investigates the double role of N-doped carbon quantum dots (N-CQDs) in dye-sensitized solar cells (DSSCs) that operate under diffused- and low-light intensity conditions. We demonstrate that the incorporation of N-CQDs leads to a substantial improvement in the performance of DSSCs. Under standard one-sun illumination, the maximum power conversion efficiency (PCE) achieved with N-CQDs is
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A Model-free Approach for Estimating Service Transformer Capacity Using Residential Smart Meter Data IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-12-04 Joseph A. Azzolini, Matthew J. Reno, Jubair Yusuf
Before residential photovoltaic (PV) systems are interconnected with the grid, various planning and impact studies are conducted on detailed models of the system to ensure safety and reliability are maintained. However, these model-based analyses can be time-consuming and error-prone, representing a potential bottleneck as the pace of PV installations accelerates. Data-driven tools and analyses provide
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Impact of Backsheet Variety on Inverter Availability IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-11-30 Claudia Buerhop-Lutz, Oleksandr Stroyuk, Jens A. Hauch, Ian Marius Peters
Recent studies show that the choice of backsheets and encapsulants can be essential for the operational readiness of inverters, which affects system revenue. A key module property determined by the backsheet is ground impedance, which needs to exceed a threshold value or the inverter fails to connect to the grid—it trips. We studied the impact of different backsheets on insulation resistance and inverter
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Investigation of p-Type Silicon Heterojunction Radiation Hardness IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-11-29 Romain Cariou, Adrien Danel, Nicolas Enjalbert, Frédéric Jay, Sébastien Dubois
The space sector is facing significant upheavals, in particular, in terms of cost reduction challenges, driven by the emergence of low Earth orbit constellations. Concerning solar power generation, it opens up perspectives for alternative solar photovoltaics technologies, instead of the highly performant and expensive III-V multijunction devices. Crystalline silicon solar cells, which have fueled initial
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Sputtering for the Formation of Si-Based Passivating Contacts IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-11-27 Christophe Allebé, Antoine Descoeudres, Patrick Wyss, Pauline Boillat, Nicolas Pernès, Bertrand Paviet-Salomon, Christophe Ballif
We investigate the electrical properties of electron-selective passivating contacts based on thin tunnel oxide capped by a phosphorus-doped poly-Si layer. The poly-Si formation relies on the sputtering of the amorphous-Si layer subsequently annealed. We study the impact of the doping method, the phosphorus content of the Si target, sputtering parameters as well as annealing temperature on surface passivation
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Diffusion of UV Additives in Ethylene-Vinyl Acetate Copolymer Encapsulants and the Impact on Polymer Reliability IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-11-27 Robert Heidrich, Marius L端demann, Anton Mordvinkin, Ralph Gottschalg
The reliability of solar modules is largely determined by the encapsulation materials used and their inherent additive composition. Although the use of polymer additives generally leads to better encapsulant characteristics, the diffusion of these species must be considered. While UV additives protect the encapsulant from photo degradation, their interactions with other additives or with formed radicals
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Polysilicon Passivating Contacts in Mass Production: The Pursuit of Higher Efficiencies IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-11-20 Peiting Zheng, Sieu Pheng Phang, Jie Yang, Zhao Wang, Jinjin Chen, Er-Chien Wang, Josua Stuckelberger, Hang Cheong Sio, Xinyu Zhang, Daniel Macdonald, Hao Jin
The application of polysilicon passivating contacts in silicon solar cells has significantly increased the solar cell efficiencies in mass production and the technology is experiencing rapid growth in coming years. Commonly applied in the form of n-type doped polysilicon (poly-Si) passivating contacts on the rear surface to minimize parasitic absorption, the effective suppression of metal silicon interface
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Analysis and Modeling of CPV Performance Loss Factors in Humid Continental Climate IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-11-13 Mehdi Talebi, Maïté Volatier, Gwenaëlle Hamon, Sylvain Nicolay, Christian Dubuc, Maxime Darnon
Local climate and environmental conditions can impact the performance of concentrator photovoltaic (CPV) systems. There is a lack of experimental performance analysis of CPV systems, especially in the region with high snowfall and very low temperature in winters. In this article, we present first a CPV system performance in humid continental climate and identify snow and frost as sources of losses
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Toward High-Performance HTL-Free All-Perovskite Tandem Solar Cells: SCAPS Simulation IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-11-08 Hongliang Liu, Ling Xiang, Qing Liu, Peng Gao, Yong Zhang, Shuti Li, Fangliang Gao
Perovskite tandem solar cells have met attractive concentrations with the potential to break through the Shockley–Queisser limit in single-junction photovoltaics. However, the efficiency of all-perovskite tandem solar cells is still challenging due to the deficiency of low-bandgap Pb–Sn mixed perovskite solar cells. In this work, high-performance hole-transporting layer free (HTL-free) low-bandgap
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Effect of Thermal Cycling Aging Photovoltaic Ribbon on the Electrical Performance of Photovoltaic Modules IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-11-08 Ping Feng, Lei Li, Yanyun Yang, Jielei Tu, Hao Wu, Yucen Xie, Qixing Zhang, Zhangyang Xu
The objective of this study was to reveal the impact of aging photovoltaic ribbon welding layer materials on the performance of photovoltaic modules. We conducted thermal cycling aging on photovoltaic ribbon, solar cells, and solar cells welded with photovoltaic ribbons. Using scanning electron microscopy, we observed the welded interface morphology of photovoltaic ribbon. The results show that the
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Editorial Introduction to the November 2023 Issue of the IEEE Journal of Photovoltaics IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-11-06 Angus Rockett
This issue of the IEEE JOURNAL OF PHOTOVOLTAICS (JPV) contains a number of articles I think you will find interesting. We have a new opportunity in this issue.We now have cover art developed from the review article that is the first paper. This is the latest update by Haegel and Kurtz on the current status of photovoltaics and other renewable energy technologies in global energy generation. The cover
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The Effect of Different Concentrations of Molybdenum Trioxide in Electrolyte for Dye-Sensitized Solar Cells (DSSCs): Performance Enhancement of DSSCs IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-11-01 Abdel-Menem Elnemr, A. M. Ghander, Ibrahim A. El-Sayed, Hytham Elbohy
Dye-sensitized solar cells (DSSCs)’ photovoltaic conversion efficiency is decreased by recombination reactions at the photo anode/electrolyte interface. Herein, a new molybdenum trioxide ( $\text{MoO}_{3}$ ) function is used as a treatment agent for electrolytes. $\text{MoO}_{3}$ added to the electrolyte precludes recombination of electrons with triiodide ( $I_{3}^{-}$ ) ions at photoanodes/electrolyte
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Beyond 20% World Record Efficiency for Thin-Film Solar Modules IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-30 Hossam Elanzeery, Marko Stölzel, Patrick Eraerds, Peter Borowski, Hisham Aboulfadl, Alberto Lomuscio, Detlef Helmecke, Christian Schubbert, Souhaib Oueslati, Matej Hála, Julian Röder, Florian Giesl, Thomas Dalibor
We report on crossing the 20% efficiency line for thin-film solar modules. The efficiency of our cadmium-free Cu(In,Ga)(S,Se) 2 (CIGSSe) mid-sized modules (30 × 30 cm 2 ) based on the cost-efficient AVANCIS stacked elemental layer – rapid thermal processing absorber process has evolved in the last two years reaching 19.6%, 19.8% and recently we have achieved an efficiency level of 20.3% as independently
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An Investigation on the Pollen-Induced Soiling Losses in Utility-Scale PV Plants IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-30 João Gabriel Bessa, Michael Valerino, Matthew Muller, Mike Bergin, Leonardo Micheli, Florencia Almonacid, Eduardo F. Fernández
In this study, the impact of pollen as a PV soiling agent is investigated. The performance data of five utility-scale PV plants in North Carolina, USA, was collected and analyzed using two soiling extraction methods. Satellite and environmental data, including pollen counts, cropland, and vegetation, was also collected and analyzed to identify impacts to soiling losses. During the spring peak pollen
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Predicting Warranty Risk of PV Modules IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-27 Emre Karatas, Ralph Gottschalg
Photovoltaic devices degrade during their lifetime, just like any other technology. Degradation rates, and thus the lifetime of products, are currently not well understood. This lack of understanding results in stakeholders being exposed to unquantified risks and subsequently insufficient securities being set aside. It is shown that one cannot rely on a singular degradation rate of module's datasheet
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Setting Priorities for Photovoltaic Reliability Research Using Criticality Analysis IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-26 Ingrid L. Repins, Michael G. Deceglie, Timothy J. Silverman, David C. Miller, Dirk C. Jordan, Mike Woodhouse, Teresa M. Barnes
A forward-looking research opportunity number (RON) is defined for photovoltaic reliability researchers. The RON enables researchers to prioritize their efforts toward the highest impact. For a given degradation mode, the RON is based on three factors: the effect on levelized cost of electricity, the susceptibility of future module products, and the maturity of accelerated tests that can detect and
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Net Zero Water Withdrawal Strategies and Multicriteria Impacts for PV Manufacturing IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-26 Parikhit Sinha, Sunil Sajja, Tzy Wei Ooi, Sreenivas Jayaraman, Sukhwant Raju
Net zero water withdrawal is a sustainable development strategy for manufacturing in water-stressed locations. A case study in Tamil Nadu, India shows that sustainable net zero water withdrawal photovoltaics (PV) manufacturing can be achieved by a) utilizing on-site wastewater treatment and zero liquid discharge units to maximize the usage of onsite reclaimed water, b) using offsite reclaimed water
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Measurement and Simulation of Moisture Ingress in PV Modules in Various Climates IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-25 Stefan Mitterhofer, Jan Slapšak, Alexander Astigarraga, David Moser, Guillermo Oviedo Hernandez, Paolo Vincenzo Chiantore, Wei Luo, Yong Sheng Khoo, Jorge Rabanal-Arabach, Edward Fuentealba, Pablo Ferrada, Mauricio Trigo Gonzalez, Julián Ascencio-Vásquez, Marko Topič, Marko Jankovec
Moisture plays a critical role in the degradation process of photovoltaic (PV) modules in field conditions. A commonly used approach is to evaluate the properties of PV materials by conducting tests in climatic chambers, and then apply the Fickian diffusion model in simulations to replicate field conditions, however, without experimental verification. This study describes an experimental setup for
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Model-Based Assessment of the Incident Angle Modifier on the Annual Angular Losses and Gain of PV Modules in Tracking Systems IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-24 Ailton Gonçalves, Diego Rativa, Luis Arturo Gómez-Malagón
In a competitive photovoltaic (PV) solar energy market, precise and accurate modeling of the energy produced by a PV power plant is required to obtain the best technical and economic project. In particular, slight differences in the predicted energy produced are relevant due to the project size. Typically, the energy calculation includes the direct and diffuse components of the solar radiation at normal
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In Situ Annealing of Boron-Doped Amorphous Silicon Layers Using APCVD Technology IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-23 Vaibhav V. Kuruganti, Alexander Mazurov, Sven Seren, Olindo Isabella, Valentin D. Mihailetchi
In this work, we developed an in situ annealing process to crystallize boron-doped amorphous silicon [a-Si(p + )] layers deposited by atmospheric pressure chemical vapour deposition (APCVD) to form boron-doped polycrystalline silicon [poly-Si(p + )] layers. The influence of the temperature profiles during a-Si(p + ) inline deposition on structural, electrical, and passivation properties was studied
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Simulation of the Effects of Geometry on Performance of Luminescent Solar Concentrator Photovoltaic Devices IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-20 Xitong Zhu, Michael G. Debije, Angèle H. M. E. Reinders
This computational study presents the influences of device geometry, including shape, size, and thickness, on the performance of luminescent solar concentrator photovoltaic (LSC-PV) devices. LSC-PV device optical performance was simulated for 8 different device shapes: circular, regular triangular, pentagonal, hexagonal, square, and three rectangular with varying aspect ratios, with 10 different surface
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Hybrid GMPPT Technique for Photovoltaic Series Based on Fractional Characteristic Curve IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-20 Eduardo Jose Barbosa, Marcelo Cabral Cavalcanti, Gustavo Medeiros Souza Azevedo, Rafael Cavalcanti Neto, Eduardo Augusto Oliveira Barbosa, Fabricio Bradaschia
This article proposes a hybrid global maximum power point (MPP) tracking technique, named improved global fractional characteristic curve (IGFCC), which combines the advantages of both the model-based and heuristic techniques. The IGFCC technique aims to achieve high speed and accuracy in tracking the MPP of photovoltaic (PV) modules. The model-based technique employed in the IGFCC technique utilizes
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Double Layer and High–Low Refractive Index Stacks Antireflecting Coatings for Multijunction Perovskite-on-Silicon Solar Cells IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-19 GuoJiao Hou, Clara Sanchez-Perez, Ignacio Rey-Stolle
The progress toward high-efficiency and low-cost photovoltaics is currently driven by the development of multijunction perovskite-on-silicon solar cells. In many cases, these devices use relatively simple single-layer antireflection coatings formed by a low-index optical material. In this article, we analyze the potential of improving such antireflecting coatings (ARCs) using two optical materials
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Quantification of the Impact of Azimuth and Tilt Angle on the Performance of a PV Output Power Forecasting Model for BIPVs IEEE J. Photovolt. (IF 3.0) Pub Date : 2023-10-17 Berhane Darsene Dimd, Steve Völler, Ole-Morten Midtgård, Umit Cali, Alexis Sevault
Building integrated photovoltaics (BIPVs) have become increasingly popular in urban areas due to their potential to provide zero-emission energy in buildings. BIPVs enable the use of MO of photovoltaic (PV) modules, resulting in multiple generation peaks throughout the day, which can closely match the consumption profile of a building. However, designing a PV output power forecasting model for BIPVs