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

doi:10.1088/1674-1056/27/5/053101

摘要/Abstract

摘要： In the present work, firstly, a first-principles study of the structural, electronic, and electron transport properties of the Hg_x Mg_(1-x) Te (HMT) ternary compound is performed using the ABINIT package and the results are compared with Cd_0.9Zn_0.1 Te (CZT) as a current room-temperature photodetector. Next, the response functions of Hg_0.6Mg_0.4 Te and Cd_0.9Zn_0.1 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 Hg_0.6Mg_0.4 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 Hg_x Mg_(1-x) Te (HMT) ternary compound is performed using the ABINIT package and the results are compared with Cd_0.9Zn_0.1 Te (CZT) as a current room-temperature photodetector. Next, the response functions of Hg_0.6Mg_0.4 Te and Cd_0.9Zn_0.1 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 Hg_0.6Mg_0.4 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)

Ghasemi Hasan, Mokhtari Ali. Using the Hg_xMg_(1-x) Te ternary compound as a room temperature photodetector: The electronic structure, charge transport, and response function of the energetic electromagnetic radiation[J]. 中国物理B, 2018, 27(5): 53101-053101.

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

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

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