Infrared and Laser Engineering, Volume. 52, Issue 7, 20220804(2023)

Review of defects of HgCdTe films grown by LPE

Wenbin Qi, Shuren Cong*, Linwei Song, Pei Li, Xianyan Jiang, Jianyun Yu, Zhuo Ning, Wenbin Deng, and Jincheng Kong
Author Affiliations
  • Kunming Institute of Physics, Kunming 650223, China
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    Figures & Tables(13)
    The effects of mercury pressure (Annealed at 500 ℃ and quenched to 77 K). (a) Annealing temperature; (b) Impact on point defect concentration[20]
    The effects of temperature (a) and mercury partial pressure (470 ℃) (b) on defect concentration, and the relationship of relative chemical potential of Li, Na, and Cu in MCT and CdTe with Cd partial pressure (c)[24]
    Dependence of the minority carrier lifetime (a) and R0A product (b) on dislocation density, the theoretically predicted curves (solid line and dotted line) calculated by JOWIKOWSKI et al.[26-29]
    Crosshatch and Mosaic morphologies of MCT films (X-ray diffraction topography)[34]
    The relationship between lattice mismatch and Crosshatch (a), (b) as well as FWHM (c)[35],thermal expansion coefficient of MCT and CZT (d) as a function of composition, the data marked with solid and hollow circles were measured by Skauli et al[37], line 1, 2, 3, and 4 were from the reported literatures[38-43]
    MCT film with a normal surface and rough structure (a), and the range of lattice mismatch values without a rough structure(b)[46]
    The schematic diagram (a) and characterizations of threading dislocations (b) [48], the Cd-rich precipitates and dislocations in CZT substrate (c) [50], the dislocations in MCT film deriving from the Cd-rich precipitates (d) [51]
    The dependence of inclusion size (a) and atomic diffusion coefficients (b) with annealing temperature, the IR transmission images of the etched Cd-rich inclusion before annealing and after annealing (c)[53]
    The crater defects deriving from the particles (a)[57] and precipitates (b)[58] on the substrate
    The cross-section photography of the hill-like defect on the surface of MCT film and the variation of composition along the cross-section of the defect[63]
    SEM images (a), (c) and composition (b), (d) of two crystalline defects[62]
    Optical morphologies of terracing patterns on the surface of MCT[65]
    Optical morphologies of surface ripple for MCT films (a), (b)[71]
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    Wenbin Qi, Shuren Cong, Linwei Song, Pei Li, Xianyan Jiang, Jianyun Yu, Zhuo Ning, Wenbin Deng, Jincheng Kong. Review of defects of HgCdTe films grown by LPE[J]. Infrared and Laser Engineering, 2023, 52(7): 20220804

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    Paper Information

    Category: Materials & Thin films

    Received: Nov. 7, 2022

    Accepted: --

    Published Online: Aug. 16, 2023

    The Author Email: Cong Shuren (congshuren@126.com)

    DOI:10.3788/IRLA20220804

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