(C_4H_9NH_3)_2PbI_4有机-无机材料的制备工艺研究  

Study on Preparation Method of Layered Perovskite Organic-inorganic Hybrid Materials

作　　者：王翔[1] 刘韩星[1] 欧阳世翕[1] 曾扬略[1] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室,武汉430070

出　　处：《武汉理工大学学报》2004年第9期7-9,共3页Journal of Wuhan University of Technology

基　　金：国家自然科学基金 (90 2 0 6 0 4 7)

摘　　要：制备了 (C4 H9NH3) 2 Pb I4 层状类钙钛矿有机 -无机材料晶体 ,并进行了 XRD和 SEM测试 ,分析了低温水溶液制备方法与多层溶液制备方法以及工艺条件对晶体自组装过程的影响。结果表明 ,多层溶液技术制备的层状钙钛矿晶体的结晶度较高 ,晶粒较大 ,内部质点的排列比较规则。低温水溶液晶体生长技术中体系降温速率的快慢对晶体的形成有影响 ,当降温速率在 5℃ /h时 。C 4H 9NH 3) 2PbI 4 layered perovskite organic-inorganic hybrid materials are made by two crystal growth techniques separately. After analysis, the crystals via XRD and SEM, the two methods are compared and the effects of temperature on crystal growth are discussed. It showed that the crystals made by layered solution crystal growth technique have higher crystallinity and fine grain. When using low-temperature solution aqueous growth technique, the layered structure could be found at system cooling rate of 5 ℃/h.

关 键 词：层状钙钛矿结构 有机-无机混杂材料 自组装 制备工艺 

分 类 号：TB34[一般工业技术—材料科学与工程]