Co-deposition of hole-selective contact and absorber for improving the processability of perovskite solar cells
Co-deposition of hole-selective contact and absorber for improving the processability of perovskite solar cells
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DOI：
10.1038/s41560-023-01227-6
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发表时间：
2023-03
期刊：
影响因子：
56.7
通讯作者：
Xiaopeng Zheng;Zhen Li;Yi Zhang;Min Chen;Tuo Liu;C. Xiao;Danpeng Gao;Jay B. Patel;D. Kuciauskas;A. Magomedov;R. Scheidt;Xiaoming Wang;S. Harvey;Zhenghong Dai;Chunlei Zhang;D. Morales;Henry Pruett;Brian M. Wieliczka;Ahmad R. Kirmani;N. Padture;K. Graham;Yanfa Yan;M. Nazeeruddin;M. McGehee;Zonglong Zhu;J. Luther
中科院分区：
文献类型：
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作者：
Xiaopeng Zheng;Zhen Li;Yi Zhang;Min Chen;Tuo Liu;C. Xiao;Danpeng Gao;Jay B. Patel;D. Kuciauskas;A. Magomedov;R. Scheidt;Xiaoming Wang;S. Harvey;Zhenghong Dai;Chunlei Zhang;D. Morales;Henry Pruett;Brian M. Wieliczka;Ahmad R. Kirmani;N. Padture;K. Graham;Yanfa Yan;M. Nazeeruddin;M. McGehee;Zonglong Zhu;J. Luther
简化可再生能源技术的制造过程对于降低商业化障碍至关重要。在这种情况下，为了提高钙钛矿太阳能电池（PSC）的可制造性，我们开发了一种一步溶液涂覆方法，其中空穴选择性接触和钙钛矿光吸收剂自发形成，从而产生高效的倒置PSC。我们观察到，掺入钙钛矿前体溶液中的膦酸或羧酸在钙钛矿膜加工期间在氧化铟锡基底上自组装。它们形成坚固的自组装单层，作为优异的空穴选择性接触，同时钙钛矿结晶。我们的方法解决了润湿性问题，简化了器件制造，提高了PSC的可制造性。我们的具有正-本征-负（pin）几何结构的PSC器件显示出24.5%的功率转换效率，并且在连续照明下以最大功率点运行1，200小时后仍保持其初始效率的90%以上。该方法具有良好的通用性，因为它与不同的自组装单层分子系统，钙钛矿，溶剂和加工方法兼容。
Simplifying the manufacturing processes of renewable energy technologies is crucial to lowering the barriers to commercialization. In this context, to improve the manufacturability of perovskite solar cells (PSCs), we have developed a one-step solution-coating procedure in which the hole-selective contact and perovskite light absorber spontaneously form, resulting in efficient inverted PSCs. We observed that phosphonic or carboxylic acids, incorporated into perovskite precursor solutions, self-assemble on the indium tin oxide substrate during perovskite film processing. They form a robust self-assembled monolayer as an excellent hole-selective contact while the perovskite crystallizes. Our approach solves wettability issues and simplifies device fabrication, advancing the manufacturability of PSCs. Our PSC devices with positive-intrinsic-negative (pin) geometry show a power conversion efficiency of 24.5% and retain> 90% of their initial efficiency after 1,200 h of operating at the maximum power point under continuous illumination. The approach shows good generality as it is compatible with different self-assembled monolayer molecular systems, perovskites, solvents and processing methods.