𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Dielectric functions and fundamental band gaps of Cu 2 In 4 Se 7 , CuGa 3 Se 5 and CuGa 5 Se 8 crystals

✍ Scribed by León, M; Levcenko, S; Nateprov, A; Nicorici, A; Merino, J M; Serna, R; Arushanov, E


Book ID
125425781
Publisher
Institute of Physics
Year
2007
Tongue
English
Weight
219 KB
Volume
40
Category
Article
ISSN
0022-3727

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Optical characterization of CuIn3Se5, Cu
✍ León, M. ;Serna, R. ;Levcenko, S. ;Nateprov, A. ;Nicorici, A. ;Merino, J. M. ;Ar 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 248 KB

## Abstract The ellipsometric spectra of CuIn~3~Se~5~, CuGa~3~Se~5~ and CuGa~5~Se~8~ ordered vacancy compounds (OVC) have been studied in the spectral range from 0.8 to 4.4 eV. The structures observed in the measured spectra were analyzed by fitting the second derivative of the experimental spectru

Fundamental absorption edge in CuIn5Se8a
✍ León, M. ;Levcenko, S. ;Syrbu, N. N. ;Nateprov, A. ;Tezlevan, V. ;Merino, J. M. 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 264 KB

## Abstract Optical absorption spectra of CuIn~5~Se~8~ and CuGa~3~Se~5~ single crystals have been investigated. The energy gap __E__ ~g~ for CuIn~5~Se~8~ (CuGa~3~Se~5~) was found to be varied from 1.27 (1.79) to 1.21 (1.71) eV in the temperature range between 10 and 300 K. The temperature dependenc

Urbach's tail in the absorption spectra
✍ Arushanov, E. ;Levcenko, S. ;Syrbu, N. N. ;Nateprov, A. ;Tezlevan, V. ;Merino, J 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 147 KB

## Abstract Optical absorption spectra of CuIn~5~Se~8~ and CuGa~3~Se~5~ single crystals grown by chemical vapour transport were investigated in the range of 10–300 K. The logarithmic variation of the absorption coefficient with photon energy observed in both compounds just below the fundamental abs