中国物理B ›› 2018, Vol. 27 ›› Issue (5): 53101-053101.doi: 10.1088/1674-1056/27/5/053101

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

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

Ghasemi Hasan, Mokhtari Ali   

  1. Department of Physics, Faculty of Sciences, Shahrekord University, P. O. Box 115, Shahrekord, Iran
  • 收稿日期:2017-11-08 修回日期:2018-01-16 出版日期:2018-05-05 发布日期:2018-05-05
  • 通讯作者: Ghasemi Hasan E-mail:nifa2616@gmail.com

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

Ghasemi Hasan, Mokhtari Ali   

  1. Department of Physics, Faculty of Sciences, Shahrekord University, P. O. Box 115, Shahrekord, Iran
  • Received:2017-11-08 Revised:2018-01-16 Online:2018-05-05 Published:2018-05-05
  • Contact: Ghasemi Hasan E-mail:nifa2616@gmail.com

摘要: In the present work, firstly, a first-principles study of the structural, electronic, and electron transport properties of the Hgx Mg(1-x) Te (HMT) ternary compound is performed using the ABINIT package and the results are compared with Cd0.9Zn0.1 Te (CZT) as a current room-temperature photodetector. Next, the response functions of Hg0.6Mg0.4 Te 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 Hg0.6Mg0.4 Te ternary compound is suggested as a good semiconductor photodetector for use at room temperature.

关键词: band gap, charge-carrier transport, photodetector, density functional theory

Abstract: In the present work, firstly, a first-principles study of the structural, electronic, and electron transport properties of the Hgx Mg(1-x) Te (HMT) ternary compound is performed using the ABINIT package and the results are compared with Cd0.9Zn0.1 Te (CZT) as a current room-temperature photodetector. Next, the response functions of Hg0.6Mg0.4 Te 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 Hg0.6Mg0.4 Te ternary compound is suggested as a good semiconductor photodetector for use at room temperature.

Key words: band gap, charge-carrier transport, photodetector, density functional theory

中图分类号:  (Density-functional theory)

  • 31.15.E
31.15.es (Applications of density-functional theory (e.g., to electronic structure and stability; defect formation; dielectric properties, susceptibilities; viscoelastic coefficients; Rydberg transition frequencies)) 29.40.-n (Radiation detectors) 29.30.Kv (X- and γ-ray spectroscopy)