OPTICAL-CONSTANTS OF VACUUM-EVAPORATED POLYCRYSTALLINE CADMIUM SELENIDE THIN-FILMS

被引：127

作者：

PAL, U

SAMANTA, D

GHORAI, S

CHAUDHURI, AK

机构：

[1] VIDYASAGAR UNIV,DEPT PHYS,MIDNAPORE 721102,INDIA

[2] INDIAN INST TECHNOL,DEPT PHYS,KHARAGPUR 721302,W BENGAL,INDIA

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 74卷 / 10期

关键词：

D O I：

10.1063/1.355161

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The optical constants (n,K) of vacuum-evaporated polycrystalline CdSe thin films are determined over 900-3100 nm photon wavelengths. Variation of band gap and optical constants with film thickness and substrate temperature is studied. Anomalous variation of refractive index near the band gap is explained by the volume and surface imperfections. Average spin-orbit splitting of valence band (0.32) is estimated for the films deposited on mica substrates. A theoretical plot of refractive index near the band edge is done. The dispersion of refractive index in films is studied by considering a single-oscillator model.

引用

页码：6368 / 6374

页数：7

共 42 条

[21] SEMIEMPIRICAL TIGHT-BINDING BAND STRUCTURES OF WURTZITE SEMICONDUCTORS - ALN, CDS, CDSE, ZNS, AND ZNO [J].