High purity germanium crystal growth at the University of South Dakota

2nd Workshop on Germanium Detectors and Technologies

Wang, Guojian^1 ; Mei, Hao^1 ; Mei, Dongming^1 ; Guan, Yutong^1 ; Yang, Gang^1

Department of Physics, University of South Dakota, Vermillion

SD

57069, United States^1

关键词: Crystal properties;    Crystalline structure;    Dislocation densities;    Germanium crystals;    Growing process;    High purity germaniums;    Impurity distribution;    Large diameter;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/606/1/012012/pdf
DOI  :  10.1088/1742-6596/606/1/012012

来源: IOP

【 摘 要 】

High-purity germanium crystal growth is challenging work, requiring the control of individual crystal properties such as the impurity distribution, the dislocation density, and the crystalline structure. Currently, we grow high-purity germanium crystals by the Czochralski method in our laboratory in order to understand the details of the growing process, especially for large diameter crystals. In this paper, we report the progress of detector-grade germanium crystal growth at the University of South Dakota.