快速生长KDP晶体表面的光学显微实时观察  

In-situ Observing of the Rapid Growing Surface of KDP Crystal by Optical Microscope

作　　者：李明[1] 滕冰[1] 钟德高[1] 张世明[1] 吕寒玉[1] 赵严帅[1] 由飞[1] 许辉[1] 

机构地区：[1]青岛大学物理科学学院,青岛266071

出　　处：《人工晶体学报》2010年第3期598-602,共5页Journal of Synthetic Crystals

基　　金：国家自然科学基金(No.10774081;No.10979029);国家光电子晶体材料工程技术研究中心开放基金(2007K08);山东省自然科学基金(Y2007F16)

摘　　要：设计了一套溶液降温法晶体生长显微实时观察装置,对快速生长KDP晶体{101}和{100}表面形貌的演化过程进行了实时观测分析。测量了晶体表面生长层切向生长速度随溶液过饱和度的变化曲线,并利用台阶生长动力学方程计算了相关动力学参数。进行了Fe3+掺杂实验,结果表明Fe3+的存在会影响到不同晶面上生长层的动力学系数,从而改变KDP晶体表面生长层的切向生长速度。A set of device for in-situ observing crystal growth by temperature lowering method in solution was designed.The evolution of the {100} and {101} surface morphology of the rapid growing KDP crystal was in-situ observed and analyzed.The curves of growth layers tangential velocity on the solution supersaturation were measured.Kinetic parameters were computed by steps growth kinetics formula.The Fe3＋ doping experiments were carried out.It was found that Fe3＋ could change the kinetics coefficients of growth layers on different crystal faces,and consequently affects the tangential growth velocity of the growth layers.

关 键 词：KDP晶体 实时观察 快速生长 生长层 

分 类 号：O782.1[理学—晶体学]