Optical and morphological properties of thermochromic V 2 O 5 coatings

Optical and morphological properties of thermochromic V2O5 coatings

We present optical and morphological characterizations performed on thermochromic V2O5 coatings. V2O5 coatings were obtained by oxidation of as-deposited VOx films. Comparisons were made among coatings oxidized at various temperatures. Photographic evidence is also shown to provide the reader a clear visual description of the color change that occurs during thermochromic process. Detailed study...

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...

investigation of the electronic properties of carbon and iii-v nanotubes

boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...

Charge Ordering and Optical Transitions of Liv 2 O 5 and Nav 2 O 5

We present the measurements of the polarized optical spectra of NaV2O5 and LiV2O5. In the energy range from 0.5 to 5.5 eV we observe similar peaks in the E ‖ a spectra of NaV2O5 and LiV2O5, which suggests similar electronic structure along the a axis in both materials. On the other hand, we find almost complete suppression of the peaks in σb of LiV2O5 around 1 and 5 eV. We attribute this suppre...

7 O ct 2 00 5 Electronic Properties of α ′ - NaV 2 O 5