当前位置：
X-MOL 学术
›
J. Am. Chem. Soc.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Molecular Interaction Regulates the Performance and Longevity of Defect Passivation for Metal Halide Perovskite Solar Cells
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2020-11-16 , DOI: 10.1021/jacs.0c09560 Yepin Zhao , Pengchen Zhu 1 , Shu Huang , Shaun Tan , Minhuan Wang , Rui Wang , Jingjing Xue , Tae-Hee Han 2 , Sung-Joon Lee , Anni Zhang , Tianyi Huang , Pei Cheng , Dong Meng , Jin-Wook Lee , Jaime Marian , Jia Zhu 1 , Yang Yang
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2020-11-16 , DOI: 10.1021/jacs.0c09560 Yepin Zhao , Pengchen Zhu 1 , Shu Huang , Shaun Tan , Minhuan Wang , Rui Wang , Jingjing Xue , Tae-Hee Han 2 , Sung-Joon Lee , Anni Zhang , Tianyi Huang , Pei Cheng , Dong Meng , Jin-Wook Lee , Jaime Marian , Jia Zhu 1 , Yang Yang
Affiliation
|
Defect passivation constitutes one of the most commonly used strategies to fabricate highly efficient perovskite solar cells (PSCs). However, the durability of the passivation effects under harsh operational conditions has not been extensively studied regardless of the weak and vulnerable secondary bonding between the molecular passivation agents and perovskite crystals. Here, we incorporated strategically designed passivating agents to investigate the effect of their interaction energies on the perovskite crystals and correlated these with the performance and longevity of the passivation effects. We unraveled that the passivation agents with a stronger interaction energy are advantageous not only for effective defect passivation but also to suppress defect migration. The prototypical PSCs treated with the optimal passivation agent exhibited superior performance and operational stability, retaining 81.9 and 85.3% of their initial performance under continuous illumination or nitrogen at 85 °C after 1008 h, respectively, while the reference device completely degraded during that time. This work provides important insights into designing operationally durable defect passivation agents for perovskite optoelectronic devices.
中文翻译：
分子相互作用调节金属卤化物钙钛矿太阳能电池缺陷钝化的性能和寿命
缺陷钝化是制造高效钙钛矿太阳能电池（PSC）最常用的策略之一。然而，尽管分子钝化剂和钙钛矿晶体之间存在弱和易受攻击的二次键，但在严酷操作条件下钝化效果的持久性尚未得到广泛研究。在这里，我们结合了战略性设计的钝化剂来研究它们的相互作用能对钙钛矿晶体的影响，并将这些与钝化效应的性能和寿命相关联。我们发现具有更强相互作用能的钝化剂不仅有利于有效的缺陷钝化，而且有利于抑制缺陷迁移。用最佳钝化剂处理的原型 PSC 表现出优异的性能和操作稳定性，在 1008 小时后在连续光照或氮气下 85°C 下分别保持其初始性能的 81.9% 和 85.3%，而参考器件在此期间完全退化。这项工作为为钙钛矿光电器件设计操作耐用的缺陷钝化剂提供了重要的见解。
更新日期：2020-11-16
中文翻译：
分子相互作用调节金属卤化物钙钛矿太阳能电池缺陷钝化的性能和寿命
缺陷钝化是制造高效钙钛矿太阳能电池（PSC）最常用的策略之一。然而，尽管分子钝化剂和钙钛矿晶体之间存在弱和易受攻击的二次键，但在严酷操作条件下钝化效果的持久性尚未得到广泛研究。在这里，我们结合了战略性设计的钝化剂来研究它们的相互作用能对钙钛矿晶体的影响，并将这些与钝化效应的性能和寿命相关联。我们发现具有更强相互作用能的钝化剂不仅有利于有效的缺陷钝化，而且有利于抑制缺陷迁移。用最佳钝化剂处理的原型 PSC 表现出优异的性能和操作稳定性，在 1008 小时后在连续光照或氮气下 85°C 下分别保持其初始性能的 81.9% 和 85.3%，而参考器件在此期间完全退化。这项工作为为钙钛矿光电器件设计操作耐用的缺陷钝化剂提供了重要的见解。
京公网安备 11010802027423号