- Tytuł:
- Optical Properties of Thermally Deposited Bismuth Telluride in the Wavelength Range of 2.5-10 µm
- Autorzy:
-
Morsy, A.Y
Fouad, S.S.
Hashem, E.
El-Shazly, A.A. - Powiązania:
- https://bibliotekanauki.pl/articles/1891983.pdf
- Data publikacji:
- 1991-12
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
78.65.-s
81.40.Tv - Opis:
- The optical constants (the refractive index n, the absorption index k and the absorption coefficient α) of Bi$\text{}_{2}$Te$\text{}_{3}$ thin films were determined in the wave-lenght range of 2.5 to 10 µm. The shape of the absorption edge in Bi$\text{}_{2}$Te$\text{}_{3}$ thin films has been determined from transmittance and reflectance measurements. The edge is of the form expected for direct transition corresponding to E$\text{}_{g}$ = 0.21 eV. The optical constants were used to determine the high frequency dielectric constant ε$\text{}_{0}$ = 58, the optical conductivity σ =σ$\text{}_{1}$ + σ$\text{}_{2}$ as well as the volume and surface energy loss functions. All these parameters were used to get some information about the intraband and interband transitions.
- Źródło:
-
Acta Physica Polonica A; 1991, 80, 6; 819-825
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł