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采用金相分析方法研究了锗单晶的位错,腐蚀试剂的选择对位错的显示有较大影响。实验表明,铁氰化钾腐蚀液能清晰地显示出锗单晶的位错,其位错腐蚀坑的形状是三角形,经过计算,锗单晶的位错密度大约为11 339根/cm2。
The dislocation of germanium single crystal was studied by metallographic analysis. The choice of etching reagent has a great influence on the dislocation display. The experimental results show that the potassium ferricyanide solution can clearly show the dislocation of the germanium single crystal and the shape of the dislocation corrosion pits is triangular. After calculation, the dislocation density of the germanium single crystal is about 11 339 atoms / cm 2.