染色掺杂KDP晶体致色机理研究  

Research on Color-caused Mechanism of Dye-doped KDP Crystal

作　　者：董琳玲[1] 于杰[1] 叶未[1] 杨淼[1] 唐雪莲[1] 

机构地区：[1]昆明理工大学材料科学与工程学院,昆明650093

出　　处：《硅酸盐通报》2013年第6期1115-1118,共4页Bulletin of the Chinese Ceramic Society

基　　金：昆明理工大学大学生创新计划项目(101067438);云南省教育厅基金项目(2010Y363)

摘　　要：利用水溶法生长了二甲基橙染色KDP单晶体,通过调整pH值在4.1,晶体Z轴垂直于底板,高温生长区与低温生长区所需降温速率分别为0.1℃/30 min和0.1℃/20 min,能够生长透明度较好、尺寸为130 mm×25 mm×18mm的粉红色KDP单晶体。实验结果表明:pH指明显影响晶体的外观质量,红外光谱分析表明引起晶体呈色与二甲酚橙中的CH3和CH2有关,退火处理的激发和发射光谱表明,100℃退火处理有助于晶体的颜色均一性。Dye dimethylphenol doped KDP were grown by water-solubility method.By adjusting the pH values between 3.8 and 4.3,making the crystal＇s z axis perpendicular to the floor and controlling the cooling rate of the high temperature growth area and the low temperature growth area respectively be 0.1 ℃/30 min and 0.1 ℃/20 min,can grow better transparency,size for 130 mm × 25 mm × 18 mm pink KDP single crystal.The experimental results show that： the infrared spectrum analysis indicated that the coloration mechanism of crystal is related with CH3 and CH2 of dimethylphenol orange;the excitation of annealing process and emission spectrum shows that 100 ℃ annealing processing is helpful to the crystal color homogeneity.

关 键 词：KDP晶体 有机染色剂 红外 激发-发射光谱 退火 

分 类 号：O78[理学—晶体学]