Title :
Optical absorption of CdGa2S4
Author :
Arushanov, E. ; Zhitar, V. ; Knap, W. ; Kulikova, O. ; Kulyuk, L. ; Siminel, A.
Author_Institution :
Inst. of Appl. Phys., Acad. of Sci., Kishinev, Moldova
Abstract :
Optical absorption were investigated in CdGa2S4 in the temperature range 85-300 K. The energy gap (3.17 eV at 85 K) and its temperature dependence were determined. The latter was studied by means of a three-parameter thermodynamic model and the Einstein model. Band tail states were found to give rise to the absorption below the fundamental edge
Keywords :
cadmium compounds; energy gap; gallium compounds; ternary semiconductors; visible spectra; wide band gap semiconductors; 85 to 300 K; CdGa2S4; Einstein model; band tail states; energy gap; fundamental edge; optical absorption; temperature dependence; thermodynamic model; Absorption; Crystals; Electrons; Energy measurement; Equations; Phonons; Photonic band gap; Temperature dependence; Temperature distribution; Temperature measurement;
Conference_Titel :
Semiconductor Conference, 1998. CAS '98 Proceedings. 1998 International
Conference_Location :
Sinaia
Print_ISBN :
0-7803-4432-4
DOI :
10.1109/SMICND.1998.733798
