Молимо вас користите овај идентификатор за цитирање или овај линк до ове ставке:
https://open.uns.ac.rs/handle/123456789/13784
Назив: | Refractive-index dispersion and the optical-absorption edge of wedge-shaped thin films of CuxAs50Se50-x metal-chalcogenide glasses | Аутори: | Márquez E. González-Leal J. Jiménez-Garay R. Lukic S. Petrovic D. |
Датум издавања: | 21-феб-1997 | Часопис: | Journal of Physics D: Applied Physics | Сажетак: | The optical constants and average thickness of metal-chalcogenide glass films of chemical composition Cu x As 50 Se 50-x , with x = 5.10 and 15 at.%, are very accurately determined by a novel method, based only on the transmission spectra at normal incidence, measured over the 400-2200 nm spectral range. This useful optical method takes into consideration the non-uniform thickness of the thermally evaporated films (if not corrected, this may lead to too-large calculated values of the absorption coefficient, as well as serious errors in the values of the refractive index and film thickness). The dispersion of the refractive index is discussed in terms of the single-oscillator Wemple and DiDomenico model. The optical-absorption edges are described using the non-direct transition model proposed by Taue and the optical energy gaps are calculated by Tauc's extrapolation. It has been found that the value of the refractive index increases clearly with copper content, whereas the optical band gap decreases from 1.80 to 1.64 eV. | URI: | https://open.uns.ac.rs/handle/123456789/13784 | ISSN: | 00223727 | DOI: | 10.1088/0022-3727/30/4/026 |
Налази се у колекцијама: | Naučne i umetničke publikacije |
Приказати целокупан запис ставки
SCOPUSTM
Навођења
44
проверено 12.08.2023.
Преглед/и станица
7
Протекла недеља
7
7
Протекли месец
0
0
проверено 10.05.2024.
Google ScholarTM
Проверите
Алт метрика
Ставке на DSpace-у су заштићене ауторским правима, са свим правима задржаним, осим ако није другачије назначено.