Electronic structure and optical properties of Sb2S3 crystal

被引:84
作者
Ben Nasr, T. [1 ]
Maghraoui-Meherzi, H. [2 ]
Ben Abdallah, H. [1 ]
Bennaceur, R. [1 ]
机构
[1] Fac Sci Tunis, Lab Phys Matiere Condensee, Tunis El Manar 2092, Tunisia
[2] Fac Sci Tunis, Lab Chim Analyt & Electrochim, Tunis El Manar 2092, Tunisia
关键词
DFT; GGA; FP-LAPW; Semiconductors; Electronic structure; Dielectric function; Optical properties; CHEMICALLY DEPOSITED SB2S3; THIN-FILMS; MORPHOLOGY; BAND;
D O I
10.1016/j.physb.2010.10.070
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The electronic and optical properties of Sb2S3 are studied using the full potential linearized augmented plane wave (FP-LAPW) method as implemented in Wien2k. In this approach, the alternative form of the generalized gradient approximation (GGA) proposed by Engel and Vosko (EV-GGA) was used for the exchange correlation potential. The calculated band structure shows a direct band gap. The contribution of different bands was analyzed from total and partial density of states curves. Moreover, the optical properties, including the dielectric function, absorption spectrum, refractive index, extinction coefficient, reflectivity and energy-loss spectrum are all obtained and analyzed in detail. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:287 / 292
页数:6
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