气候变化领域集成服务门户(CCPortal): Highly stable inverted methylammonium lead tri-iodide perovskite solar cells achieved by surface re-crystallization

CCPortal

DOI	10.1039/c9ee03736e
	Highly stable inverted methylammonium lead tri-iodide perovskite solar cells achieved by surface re-crystallization
	Back H.; Kim G.; Kim H.; Nam C.-Y.; Kim J.; Kim Y.R.; Kim T.; Park B.; Durrant J.R.; Lee K.
发表日期	2020
ISSN	17545692
起始页码	840
结束页码	847
卷号	13 期号:3
英文摘要	Despite the promise of simple manufacturing via an entirely solution-based process at low temperature (<100 °C), the planar-type inverted perovskite solar cells (PeSCs) based on methylammonium lead tri-iodide (MAPbI3) still suffer from a notorious instability problem under operational conditions. Here, we found that the operational stability of PeSCs with MAPbI3 is significantly related to a high density of ionic defects and correlated amorphous regions at the interface between the electron transport layer and the MAPbI3 film. By recrystallizing the surface of the MAPbI3 layer, we fabricate defect-free stoichiometric MAPbI3 crystals and demonstrated burn-in loss-free and intrinsically stable inverted MAPbI3 PeSCs. The inverted MAPbI3 PeSCs exhibited a power conversion efficiency (PCE) of 18.8% and maintained over 80% and 90% of their initial PCEs even after 1000 hours of real operation (under AM 1.5G irradiation) and continuous heating conditions (at 85 °C in the dark), respectively. Our work demonstrates that the MAPbI3 layer under ionic defect-free conditions is 'intrinsically' stable under operational conditions. © 2020 The Royal Society of Chemistry.
英文关键词	Electron transport properties; Lead compounds; Perovskite; Temperature; Amorphous regions; Continuous heating; Electron transport layers; Instability problems; Operational conditions; Operational stability; Power conversion efficiencies; Solution-based process; Perovskite solar cells; ammonium compound; crystallization; fuel cell; operations technology; perovskite
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189678
作者单位	Heeger Center for Advanced Materials and Research, Institute for Solar and Sustainable Energies, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea; Hanwha Solutions, 305 Pangyo-ro Bundanggu, Seongnam Gyeonggi, 13488, South Korea; Division of Advanced Materials, Korea Research Institute of Chemical Technology, 141 Gajeong-Ro Yuseong-Gu, Daejeon, 34114, South Korea; Institute of Integrated Technology, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea; Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, United States; Department of Chemistry and Centre for Plastic Electronics, Imperial College London, London, SW7 2AZ, United Kingdom; Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, United States; School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
推荐引用方式 GB/T 7714	Back H.,Kim G.,Kim H.,et al. Highly stable inverted methylammonium lead tri-iodide perovskite solar cells achieved by surface re-crystallization[J],2020,13(3).
APA	Back H..,Kim G..,Kim H..,Nam C.-Y..,Kim J..,...&Lee K..(2020).Highly stable inverted methylammonium lead tri-iodide perovskite solar cells achieved by surface re-crystallization.Energy & Environmental Science,13(3).
MLA	Back H.,et al."Highly stable inverted methylammonium lead tri-iodide perovskite solar cells achieved by surface re-crystallization".Energy & Environmental Science 13.3(2020).