Study of Optical and Transport Properties of Cd(subscript 1-x)Zn(subscript x)Te and CdSe(subscript x)Te(subscript 1-x) by Far-IR Reflectance Spectra

Tzuen-Rong Yang；Sheng-Hong Jhang；Yen-Hao Shih；Wan-Ni Cheng；Fu-Chung Hou；Yu-Chang Yang；P. Becla；Der-Chi Tien；Zhe-Chuan Feng

Chinese Journal of Physics

49卷1期（2011 / 02 / 01）

239 - 249

英文

Far-infrared (FIR) reflectance spectroscopy was employed to study a series of bulk Cd(subscript 1-x)Zn(subscript x)Te with varying Zn content (0-100%) and bulk CdSe(subscript x)Te(subscript 1-x) with varying Se content (5-35%). The dielectric response function model and least-square fit were used to find the optical and transport parameters. With an increase in the Zn content, the effective mass of Cd(subscript 1-x)Zn(subscript x)Te increases slightly, while the carrier concentration increases significantly; however, the mobility and conductivity decrease. With an increase in the Se content, the effective mass of CdSe(subscript x)Te(subscript 1-x) decreases slightly, while the mobility, carrier concentration, and conductivity increase significantly.