Using the HgxMg(1-x)Te ternary compound as a room temperature photodetector: The electronic structure, charge transport, and response function of the energetic electromagnetic radiation

• 来源期刊: 中国物理B（英文版）
• 关键词: band gap charge-carrier transport photodetector density functional theory
• 年，卷（期）: 2018,（5）
• 页码范围: 143-149
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/5/053101

摘要

In the present work,firstly,a first-principles study of the structural,electronic,and electron transport properties of the HgxMg(l-x)Te (HMT) temary compound is performed using the ABINIT package and the results are compared with Cd0.9Zn0.1Te (CZT) as a current room-temperature photodetector.Next,the response functions of Hg0.6Mg0.4Te and Cd0.9Zn0.1 Te under electromagnetic irradiation with 0.05 MeV,0.2 MeV,0.661 MeV and 1.33 MeV energies are simulated by using the MCNP code.According to these simulations,the Hg0.6Mg0.4Te temary compound is suggested as a good semiconductor photodetector for use at room temperature.