Ab Initio Calculations of Optical Properties of TlBr and TlCl Radiation Detectors

• 作者: Fathalla Hamed Maamar Benkraouda Noureddine Amrane
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 物理学
• 关键词: PLANE Wave Method Dielectric Function REFLECTIVITY Refractive Index COEFFICIENT of Absorption
• 年，卷（期）: ngtwlgjqkyw_2011,（3）
• 页码范围: 63-69
• 页数: 7页
• 分类号: O4

摘要

We report on ab initio calculations of the optical properties of TlBr and TlCl binary semiconductor compounds using the self-consistent scalar relativistic full potential linear augmented plane wave band method (FP-LAPW) within the local density approximation (LDA) including the generalized gradient approximation (GGA). The accurate calculations of linear optical function (refractive index, reflectance, coefficient of absorption, and both imaginary and real dielectric function) is performed in the photon energy range up to 20 eV. The predicted optical constants agree well with the available experimental data.