We report an efficient room temperature photon source at 1320 nm telecommunication wavelength from nanostructured silicon surface. The activation of this light source was realized by treating the surface of Si wafer by vapor of heavy water (D 2 O) containing a mixture of hydrofluoric and nitric acids. Treatment without deuterium generates an intense light emission band at the band-edge of Si, while

Harvesting energy from human body motions is an appropriate option as an assistant or even subversive way for powering the booming wearable electronics, in which smart textiles are important components. Here, we fabricate a robust power textile with working mechanism of triboelectrification effect and electrostatic induction effect by simply integrating the normal textiles and polydimethylsiloxane

Multiple valued logic (MVL) can represent an exponentially higher number of data/information compared to the binary logic for the same number of logic bits. Compared to the conventional and other emerging device technologies, Graphene Nano Ribbon Field Effect Transistor (GNRFET) appears to be very promising for designing MVL logic gates and arithmetic circuits due to some exceptional electrical properties

Microsphere-assisted nanoscopy has shown great potential in recent developments in the field of super-resolution imaging. The precise control of microspheres is leading to new discoveries that can help verify the theories behind the super-resolution imaging mechanism. However, microsphere imaging involves multiple planes that have different magnification factors, which affect the determination of the

The search for a binary switch that is more energy-efficient than a transistor has led to many ideas, notable among which is the notion of using a nanomagnet with two stable magnetization orientations that will encode the binary bits 0 and 1. The nanomagnet is switched between them with electrically generated mechanical strain. A tiny amount of voltage is required for switching, with energy dissipation

An atmospheric pressure plasma based printer is described as an alternative to conventional techniques including inkjet printing. The approach is demonstrated to be capable of printing various nanomaterials, and adjusting the plasma parameters, carrier gas flows and the physical parameters of the inks or nanomaterial suspensions can optimize the print quality. Raman analysis was used to characterize

This work comprises of design and simulation of multi-channel line tunnel field-effect transistors (mCLTFETs) by scaling inter-gate separation (IGS) and overlapped source ( LOV ). The scope of the work is to explore the performance boost and optimization of the studied devices by considering geometrical structures, low-bandgap materials, IGS and LOV of the mCLTFETs. The structure is designed without

Cytokines are multifunctional chemical messengers produced in response to stimuli for regulating the innate and adaptive immune systems. Rapid detection of cytokines in physiological fluids will enable precision management of diseases, such as dry eye, postoperative infections, graft versus host reactions in organ transplant, and cancer. In this study, we present a portable electrochemical biosensor

Commercially available, chemical vapor deposition grown, graphene has been used to realize voltage-gate tunable, microwave power detectors. Corbino disc structures with chrome/gold contacts have been fabricated on top of graphene deposited on P-type silicon substrates with silicon dioxide gate oxides. Devices of varying sizes were used to detect a 433.92 MHz signal. These test structures exhibited

We demonstrate graphene-on-diamond field effect transistor (FET) actions modulated by optically excited charge state of nitrogen-vacancy (NV) centers in diamond. Palladium (Pd) metal contacts on graphene serve as the source and the drain. Negative charge state NV - center in diamond serves as the gate with diamond being the gate dielectric and produces an electric field to enhance the hole concentration

The rapid development of untethered micro/nanorobots enables them to be applied in biomedical tasks, such as targeted delivery, localized diagnostics, and minimally invasive surgery. However, many challenges remain before applying these tiny machines to perform therapeutics and intervention in a living body. Among them, one critical issue is the integration of medical imaging systems with micro/nanorobotics

We fabricated a highly water-repellent quartz nanopillar (NP) structure to investigate the effect of varying the contact angle (CA) by using 10-nm-order gaps and 10-nm-diameter NPs. Gaps from 15 to 30 nm led to CAs of more than 100°, showing hydrophobicity, to a maximum of 105°. The mechanism of repelling water on quartz could be explained by the Cassie-Baxter model with a filling factor. A gap of

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