合成稳定的碘铅酸盐和钙钛矿,用于高效的免退火器件和长期储存

IF 18.7 1区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
SusMat Pub Date : 2023-10-17 DOI:10.1002/sus2.163
Jihyun Kim, Sang‐Won Park, Younghyun Lee, Hideo Hosono, Byungwoo Park, Jinhyun Kim
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引用次数: 0

摘要

钙钛矿太阳能电池作为新一代光伏器件正在迅速兴起。然而,由于内部和外部因素导致的化学降解,解决方案和器件的稳定性都给商业化带来了挑战。特别是,碘铅酸盐在钙钛矿溶液中的分解阻碍了钙钛矿溶液的长期使用。此外,在低温下合成稳定的钙钛矿对于稳定的器件和广泛的应用(柔性器件和高再现性)至关重要。本文发现,钙钛矿的关键成分是利用CsPbBr 3和fapbi3获得高稳定性的碘铅酸盐和钙钛矿晶体,具有高器件性能和长期溶液存储能力。CsPbBr 3合金fapbi3的新组成不仅在无退火条件下结晶,而且在100天(~ 3000 h)内表现出优异的碘铅稳定性,没有任何降解。此外,在am 1.5和85°C/85%相对湿度的极端条件下,分别在2000和3000小时内实现了高器件稳定性。总体而言,该器件显示出23.4%的高功率转换效率,此外,CsPbBr 3 -合金fapbi3致力于扩大柔性和碳电极器件的应用,从而解决科学深度和潜在的商业材料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Synthesis of stable iodoplumbate and perovskite for efficient annealing‐free device and long‐term storage
As a next‐generation photovoltaic device, perovskite solar cells are rapidly emerging. Nevertheless, both solution and device stability pose challenges for commercialization due to chemical degradation caused by internal and external factors. Especially, the decomposition of iodoplumbate in a perovskite solution hinders the long‐term use of perovskite solutions. Moreover, the synthesis of stable perovskites at low temperature is important for stable devices and wide applications (flexible devices and high reproducibility). Herein, the critical composition of perovskite is found to obtain high stabilities of both iodoplumbate and perovskite crystals by utilizing CsPbBr3 and FAPbI3, exhibiting high device performance and long‐term solution storage. The novel composition of CsPbBr3‐alloyed FAPbI3 not only crystallizes under annealing‐free conditions but also demonstrates excellent iodoplumbate stability for 100 days (∼3000 h) without any degradation. Furthermore, high device stabilities are achieved over 2000 and 3000 h under extreme conditions of A.M. 1.5 and 85°C/85% relative humidity, respectively. Overall, the device exhibited a high power conversion efficiency of 23.4%, and furthermore, CsPbBr3‐alloyed FAPbI3 was devoted to widen the applications in both flexible and carbon‐electrode devices, thereby addressing both scientific depths and potential commercial materials.
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4.20%
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期刊介绍: SusMat aims to publish interdisciplinary and balanced research on sustainable development in various areas including materials science, engineering, chemistry, physics, and ecology. The journal focuses on sustainable materials and their impact on energy and the environment. The topics covered include environment-friendly materials, green catalysis, clean energy, and waste treatment and management. The readership includes materials scientists, engineers, chemists, physicists, energy and environment researchers, and policy makers. The journal is indexed in CAS, Current Contents, DOAJ, Science Citation Index Expanded, and Web of Science. The journal highly values innovative multidisciplinary research with wide impact.
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