In this paper a resonant tunnelling quantum well infrared photodetector (RT-QWIP) is discussed. Each period of this photodetector structure comprises of a resonant tunnelling structure (AlAs/AlGaAs/AlAs) nearby a quantum well (AlGaAs/GaAs). In this photodetector, photocurrent is produced when an electron makes a transition from the ground state of the well to an excited state which is coupled t...

A critical challenge for the convergence of optics and electronics is that the micrometre scale of optics is significantly larger than the nanometre scale of modern electronic devices. In the conversion from photons to electrons by photodetectors, this size incompatibility often leads to substantial penalties in power dissipation, area, latency and noise. A photodetector can be made smaller by ...

In this paper, high-performance UV photodetectors have been demonstrated based on indium oxide (In2O3) thin films of approximately 1.5–2 μm thick, synthesized by a simple and quick plasma sputtering deposition approach. After the deposition, thin-film surface was treated with 4–5 nm-sized platinum (Pt) nanoparticles. Then, titanium metal electrodes were deposited onto sample to form metal–semic...

Methylsulfonylmethane (MSM) is a sulfur-containing compound commonly found in diet and known to reduce oxidative stress. This trial was conducted to determine whether single dose supplementation with MSM attenuates post-exercise oxidative stress in healthy untrained young men. Sixteen untrained men volunteered for this study. Participants were randomized in a double-blind placebo-controlled fas...

methylsulfonylmethane (msm) is a sulfur-containing compound commonly found in diet and known to reduce oxidative stress. this trial was conducted to determine whether single dose supplementation with msm attenuates post-exercise oxidative stress in healthy untrained young men. sixteen untrained men volunteered for this study. participants were randomized in a double-blind placebo-controlled fas...

munication systems because of their high probability of intercept, and their simultaneous processing of multiple signals in real-timely. They also have many merits such as simple structure, light weight and low cost. Recently, to realize optical transmission system with lager capacity and high-speed, an optical module with high performance, low cost and small size is strongly required. In this ...

In this work an analytical modeling of p+-Hg0.81Cd0.19Te/n0-Hg0.81Cd0.19Te/CdZnTe, homojunction photodetector has been analyzed theoretically at 77K. A generic model of HgCdTe based photovoltaic detector has been developed using the closed form equations. Device parameters are obtained of the proposed photodetector and studied in terms of dark current, resistance area-product, quantum efficienc...