Anisotropic dielectric function spectra from single-crystal CuInSe2 with orientation domains

被引:18
作者
Kreuter, A
Wagner, G
Otte, K
Lippold, G
Schindler, A
Schubert, M
机构
[1] Inst Oberflachenmodifizierung Leipzig EV, D-04303 Leipzig, Germany
[2] Univ Leipzig, Inst Festkorperphys, Fak Phys & Geowissensch, D-04103 Leipzig, Germany
[3] Univ Nebraska, Ctr Microelect & Opt Mat Res, Lincoln, NE 68588 USA
关键词
D O I
10.1063/1.1334354
中图分类号
O59 [应用物理学];
学科分类号
摘要
The anisotropic optical constants of slightly In-rich CuInSe2 are determined on the (112) surface of a naturally grown single-crystal sample with orientation domains using generalized spectroscopic ellipsometry for photon energies between 0.8 and 4.5 eV. Orientation domains within the sample, revealed by electron diffraction investigation, cause biaxial response of the sample surface. The CuInSe2 dielectric functions are extracted at each wavelength rigorously considering orientation domains and surface roughness effects, and improve previous results. (C) 2001 American Institute of Physics.
引用
收藏
页码:195 / 197
页数:3
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