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Releasing Nanocapsules for High-Throughput Printing of Stable Perovskite Solar Cells
Advanced Energy Materials ( IF 27.8 ) Pub Date : 2021-07-16 , DOI: 10.1002/aenm.202101291
Zengqi Huang 1 , Xiaotian Hu 2 , Zhipeng Zhao 1, 3 , Xiangchuan Meng 2, 4 , Meng Su 1 , Tangyue Xue 1 , Jimei Chi 1, 3 , Hongfei Xie 1, 3 , Zheren Cai 1, 3 , Yiwang Chen 4 , Lin Li 5 , Yanlin Song 1, 3
Affiliation  

Perovskite solar cells (PSCs) are promising photovoltaic technologies due to their impressive power conversion efficiency (PCE) and low-temperature fabrication process, while it is still challenging to print uniform perovskite film with high crystalline quality over a module size. Here, a printable and stable perovskite nanocapsules ink to realize the high-throughput printing of large-area, highly uniform perovskite films with micron grain size is reported. It is discovered that the releasing effect of these perovskite nanocapsules promotes homogeneous nucleation by diffusion-controlled growth due to the steady-state diffusion of the solute in solution. Remarkably, the printed PSCs and 25 cm2 modules achieve power conversion efficiencies of 22.10% and 16.12%, respectively. They exhibit negligible efficiency loss after continuous operation for over 1000 h under AM1.5 illumination, and excellent thermal (85 °C) stability with over 87% of the initial efficiency after aging for 500 h. This perovskite nanocapsules ink is expected to facilitate the high-yield fabrication of perovskite photovoltaics.

中文翻译:

释放纳米胶囊用于稳定钙钛矿太阳能电池的高通量打印

钙钛矿太阳能电池 (PSC) 由于其令人印象深刻的功率转换效率 (PCE) 和低温制造工艺而成为有前途的光伏技术,但在模块尺寸上打印具有高结晶质量的均匀钙钛矿薄膜仍然具有挑战性。在这里,报道了一种可印刷且稳定的钙钛矿纳米胶囊墨水,可实现大面积、高度均匀的微米级钙钛矿薄膜的高通量印刷。发现由于溶质在溶液中的稳态扩散,这些钙钛矿纳米胶囊的释放作用通过扩散控制生长促进均匀成核。值得注意的是,打印的 PSC 和 25 cm 2模块分别实现了 22.10% 和 16.12% 的电源转换效率。在 AM1.5 光照下连续运行 1000 小时后,它们的效率损失可以忽略不计,并且具有出色的热 (85°C) 稳定性,老化 500 小时后效率超过初始效率的 87%。这种钙钛矿纳米胶囊墨水有望促进钙钛矿光伏器件的高产率制造。
更新日期:2021-09-09
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