The Temperature Dependence of the Thermodynamic Density of States and Urbach Rule

• 作者: G. Gulyamov N. Yu. Sharibaev U. I. Erkaboev
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 化学
• 关键词: The Density of STATES The ABSORPTION COEFFICIENT The FUNDAMENTAL ABSORPTION The Urbach RULE
• 年，卷（期）: 2015,（1）
• 页码范围: 43-47
• 页数: 5页
• 分类号: O6

摘要

It is invited statistical explanation of the frequency and temperature dependence of the absorption coefficients of semiconductors on the long-wave edge of the fundamental absorption. With the help of mathematical modeling, it shows that the thermal broadening of the energy states of the conduction band and the discrete states in the band gap can cause long-wave decline according to the Urbach rule.