Temperature dependence of optical absorption in In1-xGaxAs solid solutions by D. Derin, M. I. Aliyev, I. M. Aliyev, and G. B. Ibragimov

Crystal Research and Technology

Cryst. Res. Technol. 41, 902 (2006) - Abstract -

Temperature dependence of optical absorption in In_1-xGa_xAs solid solutions

H. Derin, M. I. Aliyev*, I. M. Aliyev*, and G. B. Ibragimov

Adnan Menderes University, 09010-Aydin, Turkey
*Institute of Physics, Academy of Sciences, Baku-1143, av.H.Javid 33, Azerbayjan Republic

Keywords	fundamental absorption edge, solid solution, disorder
PACS	78.20.-e
DOI	10.1002/crat.200510692

Absorption spectra near the fundamental absoption edge of n-type of In_1-xGa_xAs are studied. The temperature coefficient of the In_1-xGa_xAs energy gap has been obtained and compared with calculated data. An exponential dependence of the absorption coefficient on photon energy has been found. The slope of the exponential absorption curve is discussed.

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