“…[1][2][3][4][5][6] Ge as an important semiconductor material with stable chemical properties and obvious non-metallic properties has many advantages, such as non-toxicity, biocompatibility, electrochemical stability, current microelectronics compatibility, etc. [7][8][9][10][11][12][13] At present, Ge has extensive and important applications in elds such as semiconductors, aerospace measurement and control, nuclear physics detection, optical ber communication, infrared optics, solar cells, chemical catalysts, and biomedicine. [14][15][16][17][18][19][20] Ge is one of the most dispersed elements and there is almost no concentrated Ge deposit in the Earth's crust.…”