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OALib Journal期刊
ISSN: 2333-9721
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以zn(nh4)3cl5为输运剂气相生长znse单晶
Keywords: 无机非金属材料,znse体单晶,化学气相输运
Abstract:
？以化合物zn(nh4)3cl5为气相输运剂，znse多晶为原料，用化学气相输运技术（cvt）在封闭石英管中生长出直径为9mm、长度为25mm的zn1+0.031se单晶。晶体生长区的温度为898~915℃，温度梯度为1.5℃？cm-1，生长周期为21d。晶体生长端由{111}和{100}单形包围。用ro-xrd技术研究了晶体的结晶质量，znse(111)的ro-xrd谱的fwhm为24sec。光致发光特性研究表明，zn1+0.031se单zn1+0.031se晶体的pl谱由fx(439nm)和bbt(418nm)等发光峰组成，晶体的短波吸收限位于465nm处，腐蚀点密度为（5～7）×104cm-2。化合物zn(nh4)3cl5具有较高的热稳定性，是一种适合气相生长znse单晶的新型输运剂。
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