Temperature dependence of the optical absorption coefficient of microcrystalline silicon

The temperature dependence of the absorption coefficient of porous silicon

The spectral behavior and the temperature dependence of the absorption coefficient of microporous silicon films are studied in the energy range of 1.2–3.8 eV, between 7 and 450 K. For photon energies above the direct band gap at 3.3 eV, the spectral behavior of the absorption coefficient is similar to that of crystalline silicon, and its absolute value is comparable to that estimated using Brug...

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

Temperature dependence of the band-band absorption coefficient in crystalline silicon from photoluminescence

in crystalline silicon from photoluminescence Hieu T. Nguyen, Fiacre E. Rougieux, Bernhard Mitchell, and Daniel Macdonald Research School of Engineering, College of Engineering and Computer Science, The Australian National University, Canberra, ACT 0200, Australia Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales...

Temperature dependence of the radiative recombination coefficient of intrinsic crystalline silicon

The effect of temperature on optical absorption cross section of bimetallic core-shell nano particles

In this paper, the temperature dependence on optical absorption cross section of the core shell bimetallic nanoparticles (NPs) is investigated in quasi static approximation. Temperature dependence of the plasmon resonance is important issue because of recent applications of NPs of noble metal for heat treating of cancer and the computer chips. The effect of temperature on surface plasmon resona...