前驱体溶液老化时间对Mg掺杂MAPbI_3薄膜的形貌、结构及发光性质的影响  

Effect of aging time of precursor solution on morphology,structure and optical properties of Mg-doped MAPbI_3 thin films

作　　者：李春香 王策[1] 杨丽丽 王奉友[3] 范琳 LI Chun-xiang;WANG Ce;YANG Li-li;WANG Feng-you;FAN Lin(College of Chemistry,Jilin Normal University,Siping 136000,China;School of Chemistry and Chemical Engineering,Jiangsu University,Zhenjiang 212013,China;College of Physics,Jilin Normal University,Siping 136000,China)

机构地区：[1]吉林师范大学化学学院,吉林四平136000 [2]江苏大学化学化工学院,江苏镇江212013 [3]吉林师范大学物理学院,吉林四平136000

出　　处：《吉林师范大学学报（自然科学版）》2019年第1期1-6,共6页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(61475063)

摘　　要：采用一步旋涂法在硅片基底上制备Mg掺杂MAPbI_3薄膜,探究溶液老化时间对Mg掺杂MAPbI_3薄膜成膜质量和发光性质的影响规律.利用SEM、XRD、PL等表征手段对薄膜的形貌、结构、光学特性进行研究,结果表明随着钙钛矿前驱体溶液老化时间的延长,薄膜形貌由致密薄膜逐渐演变为树枝状微米结构,发光强度降低.Mg-doped MAPbI3 films were prepared on a silicon substrate by one-step spin-coating method. The effects of aging time of precursor solution on the film quality and luminescence properties of Mg-doped MAPbI3 films were investigated. The morphology,structure and optical properties of the films were investigated by means of SEM,XRD and PL techniques. The results showed that the morphology of the films gradually evolved from compact film to arborization microstructures with prolonging the aging time of the precursor solution and the corresponding PL intensity decreased as well.

关 键 词：有机-无机杂化钙钛矿 Mg掺杂 成膜质量 发光性质 

分 类 号：O472[理学—半导体物理]