نتایج جستجو برای: nitride semiconductors
تعداد نتایج: 41330 فیلتر نتایج به سال:
Introduction Recent history has seen the market for Gallium Nitride (GaN) devices grow dramatically with the LED chip market alone predicted to reach $3.4 billion by the end of 2003. Combine this with the emergence of next generation DVD players, which use the GaN blue laser technology, unique GaN high power/high frequency devices and GaN photodetectors and the importance of GaN technology can ...
Understanding the photoexcitation processes in semiconductors is critical for the design of advanced photocatalytic materials. Nevertheless, traditional viewpoints focus on photogenerated free charge carriers, which are somehow invalid once the many-body effects are taken into account, especially for polymeric photocatalysts. Here we systematically investigate the photoexcitation processes invo...
8:20 AM DD1, Ultraviolet Photodetectors with Novel Oxide Thin Films: Shizuo Fujita1; Takumi Ikenoue1; Naoki Kameyama1; Takayoshi Oshima1; 1Kyoto University A variety of wide band gap oxide semiconductors, which are recognized as stable and environmental-friendly materials, can meet various demands for detectable wavelength, sensitivity, cost, and endurance of ultraviolet photodetectors, in cont...
Abstract: In this study, using density functional theory and the SIESTA computationalcode, we investigate the electronic and optical properties of the armchair graphenenanoribbons and the armchair boron nitride nanoribbons of width 25 in the presence of atransverse external electric field. We have observed that in the absence of the electricfield, these structures are se...
Monte Carlo Simulation of Electron Energy Loss Spectra of Group III-Nitride Nanoscale Semiconductors
The development of pulsed electron sources is applied to microscopes or beam lithography and effective in expanding the functions such devices. laser photocathode can generate short electrons with high emittance, emittance be increased by changing cathode substrate from a metal compound semiconductor. Among substrates, nitride-based semiconductors negative affinity (NEA) have good advantages te...
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