无机材料学报2023，Vol.38Issue(2)：213-218,中插1-中插2,8.DOI:10.15541/jim20220155
氧化锆间隔层的低温喷涂制备及其三层结构钙钛矿太阳能电池应用性能
Zirconia Spacer: Preparation by Low Temperature Spray-coating and Application in Triple-layer Perovskite Solar Cells
摘要
Abstract
Perovskite solar cells (PSCs) with structure of TiO2/ZrO2/carbon triple-layer are attractive recently because of their inexpensive raw materials, scalable fabrication process, and outstanding stability. But little progress has been made in the low temperature fabrication of TiO2/ZrO2/carbon triple-layer structured PSCs. A major reason is that it is rather difficult to construct the ZrO2 spacer layer at low temperature. Herein, we report a facile low-temperature spray-coating method to prepare effective ZrO2 spacer layer in TiO2/ZrO2/carbon triple-layer PSCs using urea to tune the porosity. After optimizing the amount of urea and the thickness of zirconia to 1100 nm, power conversion efficiencies (PCE) of 14.7％ for a single cell and 10.8％ for a module with 5 cells connected in series (5×0.9 cm× 2.5 cm) were achieved. Furthermore, the PSCs could be stable for 200 d at constant temperature (25 ℃) and humidity (40％). With this spray coating method, the zirconia layer on flexible substrate can endure 50 times of bending without any cracking. Compared to the conventional screen-printing method of ZrO2 spacer layer, the spray-coating alternative developed in this work shows advantages of more convenient to process, preparation under lower temperature, and compatibility to flexible substrate.关键词
钙钛矿太阳能电池/三层结构/低温/氧化锆/喷涂Key words
perovskite solar cell/triple-layer structure/low-temperature/zirconia/spray-coating分类
化学化工引用本文复制引用
张万文,罗建强,刘淑娟,马建国,张小平,杨松旺..氧化锆间隔层的低温喷涂制备及其三层结构钙钛矿太阳能电池应用性能[J].无机材料学报,2023,38(2):213-218,中插1-中插2,8.基金项目
National Natural Science Foundation of China(52162020) （52162020）
Jiangxi Provincial Natural Science Foundation(20202BABL203012) （20202BABL203012）
Jiangxi Province Key Laboratory of Synthetic Chemistry(202005) （202005）
