Juan Zhang, Bingchen He, Jin Huang, Lin Yang, Yian Ding, Wenjun Zhang, Yukun Guo, Lei Shi, Abuliti Abudula, Weizhi Du, Xiaogang Hao, Xiaofei Ji, Liyou Yang, Guoqing Guan, Linfeng Lu, Zhenhuang Su, Xingyu Gao
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引用次数: 0
Abstract
Large-area fabrication of α-FAPbI3 perovskite solar modules (PSMs) faces challenges in achieving uniform crystallinity and minimizing grain boundary defects. Herenin, a CsPbBr3 seed layer was introduced onto the NiOx hole transport layer (HTL) via vacuum evaporation prior to perovskite film deposition using a vapor-blade coating method. Synchrotron-based in situ GIWAXS analysis revealed that the CsPbBr3 seed layer effectively modulates the crystallization kinetics of PbI2, facilitating the transition from δ-phase to α-phase perovskite and yielding films with superior crystallinity, grain size, and structural orientation. This seed layer also enhances the conductivity of NiOx, improves charge transport efficiency, and reduces recombination losses. As a result, large-area PSMs (active area: 61.56 cm2) incorporating the CsPbBr3 seed layer achieved a power conversion efficiency (PCE) of 20.02 %, compared to 17.62 % for pristine devices. Additionally, these encapsulated modules exhibited excellent ambient stability, maintaining over 80 % of their initial performance after 1100 h under 60 % relative humidity. This study highlights the potential of CsPbBr3 seed layer engineering as a scalable and effective strategy for industrial production of high-efficiency, stable perovskite solar modules
期刊介绍:
The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.