气候变化领域集成服务门户(CCPortal): Lattice strain causes non-radiative losses in halide perovskites

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DOI	10.1039/c8ee02751j
	Lattice strain causes non-radiative losses in halide perovskites
	Jones T.W.; Osherov A.; Alsari M.; Sponseller M.; Duck B.C.; Jung Y.-K.; Settens C.; Niroui F.; Brenes R.; Stan C.V.; Li Y.; Abdi-Jalebi M.; Tamura N.; MacDonald J.E.; Burghammer M.; Friend R.H.; Bulović V.; Walsh A.; Wilson G.J.; Lilliu S.; Stranks S.D.
发表日期	2019
ISSN	17545692
起始页码	596
结束页码	606
卷号	12 期号:2
英文摘要	Halide perovskites are promising semiconductors for inexpensive, high-performance optoelectronics. Despite a remarkable defect tolerance compared to conventional semiconductors, perovskite thin films still show substantial microscale heterogeneity in key properties such as luminescence efficiency and device performance. However, the origin of the variations remains a topic of debate, and a precise understanding is critical to the rational design of defect management strategies. Through a multi-scale investigation-combining correlative synchrotron scanning X-ray diffraction and time-resolved photoluminescence measurements on the same scan area-we reveal that lattice strain is directly associated with enhanced defect concentrations and non-radiative recombination. The strain patterns have a complex heterogeneity across multiple length scales. We propose that strain arises during the film growth and crystallization and provides a driving force for defect formation. Our work sheds new light on the presence and influence of structural defects in halide perovskites, revealing new pathways to manage defects and eliminate losses. © 2019 The Royal Society of Chemistry.
英文关键词	Film growth; Perovskite; Perovskite solar cells; Defect concentrations; Device performance; Halide perovskites; Luminescence efficiencies; Micro-scale heterogeneity; Non-radiative recombinations; Perovskite thin films; Time-resolved photoluminescence; Defects; crystallization; efficiency measurement; electronic equipment; halide; heterogeneity; lattice dynamics; performance assessment; 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/190003
作者单位	CSIRO Energy Centre, Mayfield West, NSW 2304, Australia; Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, United States; Cavendish Laboratory, University of Cambridge, JJ Thompson Avenue, Cambridge, CB30HE, United Kingdom; Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, South Korea; Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Xi'An Jiaotong University, State Key Laboratory for Mechanical Behavior of Materials, Xi'an, China; School of Physics and Astronomy, Cardiff University, Cardiff, CF243AA, United Kingdom; European Synchrotron Radiation Facility, Grenoble, France; Department of Materials, Imperial College London, Exhibition Road, London, SW72AZ, United Kingdom; Department of Physics and Astronomy, University of Sheffield, Sheffield, S37RH, United Kingdom
推荐引用方式 GB/T 7714	Jones T.W.,Osherov A.,Alsari M.,et al. Lattice strain causes non-radiative losses in halide perovskites[J],2019,12(2).
APA	Jones T.W..,Osherov A..,Alsari M..,Sponseller M..,Duck B.C..,...&Stranks S.D..(2019).Lattice strain causes non-radiative losses in halide perovskites.Energy & Environmental Science,12(2).
MLA	Jones T.W.,et al."Lattice strain causes non-radiative losses in halide perovskites".Energy & Environmental Science 12.2(2019).