双溶液法制备钙钛矿薄膜及其太阳能电池性能

发布时间：2018-03-05 04:01

本文选题：凝聚态物理学　切入点：薄膜太阳能电池　出处：《深圳大学学报(理工版)》2017年05期 　论文类型：期刊论文

【摘要】：在高湿度空气环境中,通过不同质量浓度的碘甲胺溶液与PbI_2薄膜反应制备钙钛矿薄膜与电池器件,研究碘甲胺质量浓度对薄膜形貌和太阳能电池性能的影响机理,发现高浓度碘甲胺溶液有利于纳米晶粒的致密薄膜生成,而低浓度碘甲胺溶液则形成带孔的微米晶粒薄膜,均不利于制备高性能钙钛矿电池.为克服单一溶液反应存在的问题,在改进的双溶液旋涂法中,利用8 mg/m L低浓度的碘甲胺溶液与PbI_2薄膜反应10 s,再分别用15和30 mg/m L碘甲胺溶液对薄膜后处理,获得了晶粒粒径大,且致密的钙钛矿薄膜,碘化铅残留很少.相应的,在空气中制备的钙钛矿太阳能电池展示了更好的光电转化性能.
[Abstract]:Perovskite films and battery devices were prepared by the reaction of different concentrations of iodomethylamine solution with PbI_2 thin films in high humidity air. The mechanism of the effects of iodomethylamine concentration on the morphology of thin films and the performance of solar cells was studied. It is found that high concentration of iodomethylamine solution is beneficial to the formation of dense films with nanocrystalline grains, while low concentration of iodomethylamine solution forms microcrystalline thin films with pores, which is not conducive to the preparation of high performance perovskite batteries. In the modified double solution spin-coating method, the thin film was treated with 15 and 30 mg/m / L iodomethylamine solution for 10 s by using 8 mg/m L low concentration iodomethylamine solution. The thin film with large grain size and compact perovskite film was obtained. Accordingly, perovskite solar cells prepared in air show better photoelectric conversion performance.
【作者单位】：广西电力职业技术学院电力工程系;深圳大学物理与能源学院薄膜物理与应用研究所&深圳市传感器技术重点实验室;光电子器件与系统教育部/广东省重点实验室;
【基金】：国家自然科学基金资助项目(61404086) 深圳市基础研究资助项目(JCYJ20150324140036866)~~
【分类号】：TM914.4

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