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本文在对红外非线性光学材料AgGaS2的DTA谱线进行分析的基础上,对AgGaS2的结晶习性进行了研究。对传统的Bridgman Stockbarger法进行了改进,设计出新的三温区立式炉,炉内温度梯度达到生长晶体的要求。根据自发成核的几何淘汰理论,针对AgGaS2的结晶特点,设计出适宜的石英生长安瓿,形状能够满足AgGaS2晶体结晶习性的需要,成功地生长出完整性较好的尺寸达10mm×25mm的AgGaS2单晶体。
Based on the analysis of DTA spectra of AgGaS2, an infrared nonlinear optical material, the crystal habit of AgGaS2 has been studied. The traditional Bridgman Stockbarger method was improved to design a new three-zone vertical furnace, the temperature gradient in the furnace to meet the requirements of growing crystals. According to the geometric elimination theory of spontaneous nucleation, according to the crystallization characteristics of AgGaS2, a suitable ampoule with quartz growth was designed to meet the need of crystal habit of AgGaS2. AgGaS2 with a size of 10mm × 25mm Single crystal.