نتایج جستجو برای: band gap engineering

تعداد نتایج: 516322  

Journal: :international journal of nano dimension 0
n. bahrami panah department of chemistry, payame noor university, p.o. box. 19395-3697, tehran, iran. r. vaziri department of chemistry, k. n. toosi university of technology, p.o. box. 15875-4416, tehran, iran.

the structure and the electronic properties of single-walled zigzag bn and b3c2n3 nanotubes (n, 0; n=4–10) were investigated using first-principles calculations based on a density functional theory. a plane–wave basis set with periodic boundary conditions in conjunction with vanderbilt ultrasoft pseudo-potential was employed. the energy gap of zb3c2n3nts was calculated and compared with the cor...

2000
D. J. Ripin Kuo-Yi Lim G. S. Petrich Pierre R. Villeneuve Shanhui Fan E. R. Thoen J. D. Joannopoulos E. P. Ippen L. A. Kolodziejski

Photonic band gap airbridge microcavity resonances in GaAs/AlxOy waveguides D. J. Ripin, Kuo-Yi Lim, G. S. Petrich, Pierre R. Villeneuve, Shanhui Fan, E. R. Thoen, J. D. Joannopoulos, E. P. Ippen, and L. A. Kolodziejski Department of Physics, Department of Electrical Engineering and Computer Science, Research Laboratory of Electronics, Center for Material Science and Engineering, Massachusetts ...

رشیدی, آرزو, روشن انتظار, صمد,

In this paper, the phase properties of waves reflected from one-dimensional double-periodic quasi-crystals consisting of single-negative materials are investigated using transfer matrix method. It is observed that, by increasing the double-periodic generation number, a large omnidirectional band gap is created in the single-nagative frequency range. We limit our studies to the frequency range o...

2013
Mathias Schubert Tino Hofmann Bernd Rheinlander Ines Pietzonka Torsten Sass Volker Gottschalch John A. Woollam Bernd Rheinländer

"Near-band-gap CuPt-order-induced birefringence in Al 0.48 Ga 0.52 InP 2 " (1999). Faculty Publications from the Department of Electrical and Computer Engineering. 28. The order-induced birefringence in the near-band-gap spectral range ͑0.75 to 2.5 eV͒, and its dependence on the degree of ordering ␩ is reported for Al 0.48 Ga 0.52 InP 2. Transmission and reflection generalized variable angle spec...

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