有机添加剂对KDP晶体生长及其光学性质影响的研究  

Effects of Organic Additives on the Growth and Optical Quality of KDP Crystals

作　　者：郑国宗[1] 张文彬[1] 苏根博[1] 庄欣欣[1] 李征东[1] 

机构地区：[1]中国科学院福建物质结构研究所,福州350002

出　　处：《人工晶体学报》2008年第3期519-523,共5页Journal of Synthetic Crystals

基　　金：国家863专题项目(No.863-804)

摘　　要：本文研究了乙二胺四乙酸(EDTA)和氨三乙酸(ATA)对KDP晶体生长及其光学性质的影响,其中,后者是首次报导,两者表现相似的影响。随着添加剂含量的增大,晶体生长速度先增大后减小;添加添加剂溶液所生长的KDP晶体在紫外波段的透过率提高;研究还发现,270nm处晶体透过率的主要影响因素包括过饱和度以及Fe3+和Cr3+含量;有机添加剂的添加和退火对电导率影响微弱。The effect of EDTA and ATA on the KDP crystal growth and its optical property was investigated,and ATA is firstly reported,both of them share the same influence.Crystal growth rate increases then decreases with the increase of the concentration of organic additive;the optical transmission in UV range of KDP crystals growing from solution doping organic additive increases comparing with the pure KDP crystals.It has also shown that supersaturation and the concentrations of Fe^3＋ and Cr^3＋ are the two main factors affecting the optical transmission coefficient in 270 nm;in addition,doping of organic additive and thermal annealing can＇t affect electrical conductivity remarkably.

关 键 词：KDP晶体 有机添加剂 动力学 光学性质 电导率 

分 类 号：O78[理学—晶体学]