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Etchant Research on AgGaS_2 Crystal

WU Xiao-juan;ZHAO Xin;College of Computer,Civil Aviation Flight University of China;Graduate Department,Civil Aviation Flight University of China;  
The chemical etchant of AgGaS_2 Crystals was studied.First choosing the H_2O as thinner,after repeated experiments,HNO_3 was chosen as oxidant and H_2SO_4 was chosen as complexing agent.A new etchant,i.e.HNO_3(65%):H_2SO_4(49%) = 1= 1(vol),which is effective for the etching of(112)faces of AgGaS_2 crystal.Etch pits of triangles with the same orientation and regular shape have been observed on the(112) surfaces after being etched 8 min at room temperature.
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