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DOI	10.1039/c7ee03013d
	In situ simultaneous photovoltaic and structural evolution of perovskite solar cells during film formation
	Alsari M.; Bikondoa O.; Bishop J.; Abdi-Jalebi M.; Ozer L.Y.; Hampton M.; Thompson P.; Hörantner M.T.; Mahesh S.; Greenland C.; Macdonald J.E.; Palmisano G.; Snaith H.J.; Lidzey D.G.; Stranks S.D.; Friend R.H.; Lilliu S.
发表日期	2018
ISSN	17545692
起始页码	383
结束页码	393
卷号	11 期号:2
英文摘要	Metal-halide perovskites show remarkably clean semiconductor behaviour, as evidenced by their excellent solar cell performance, in spite of the presence of many structural and chemical defects. Here, we show how this clean semiconductor performance sets in during the earliest phase of conversion from the metal salts and organic-based precursors and solvent, using simultaneous in situ synchrotron X-ray and in operando current-voltage measurements on films prepared on interdigitated back-contact substrates. These structures function as working solar cells as soon as sufficient semiconductor material is present across the electrodes. We find that at the first stages of conversion from the precursor phase, at the percolation threshold for bulk conductance, high photovoltages are observed, even though the bulk of the material is still present as precursors. This indicates that at the earliest stages of perovskite structure formation, the semiconductor gap is already well-defined and free of sub-gap trap states. The short circuit current, in contrast, continues to grow until the perovskite phase is fully formed, when there are bulk pathways for charge diffusion and collection. This work reveals important relationships between the precursors conversion and device performance and highlights the remarkable defect tolerance of perovskite materials. © 2018 The Royal Society of Chemistry.
英文关键词	Defects; Metal halides; Perovskite; Perovskite solar cells; Solar power generation; Solvents; Substrates; Current voltage measurement; In-situ synchrotrons; Interdigitated back contacts; Percolation thresholds; Perovskite structures; Semiconductor behaviours; Solar cell performance; Structural evolution; Solar cells; electrode; equipment; fuel cell; in situ measurement; measurement method; performance assessment; perovskite; photovoltaic system; solvent
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/190311
作者单位	Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE, United Kingdom; Department of Physics, University of Warwick, Coventry, CV4 7AL, United Kingdom; Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH, United Kingdom; Department of Chemical Engineering, Khalifa University of Science and Technology, Masdar Institute, PO Box 54224, Abu Dhabi, United Arab Emirates; School of Physics and Astronomy, Cardiff University, Cardiff, CF24 3AA, United Kingdom; University of Liverpool, Oliver Lodge Oxford Street, Liverpool, L69 7ZE, United Kingdom; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, OX1 3PU, United Kingdom; UAE Centre for Crystallography, United Arab Emirates; Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, United States
推荐引用方式 GB/T 7714	Alsari M.,Bikondoa O.,Bishop J.,et al. In situ simultaneous photovoltaic and structural evolution of perovskite solar cells during film formation[J],2018,11(2).
APA	Alsari M..,Bikondoa O..,Bishop J..,Abdi-Jalebi M..,Ozer L.Y..,...&Lilliu S..(2018).In situ simultaneous photovoltaic and structural evolution of perovskite solar cells during film formation.Energy & Environmental Science,11(2).
MLA	Alsari M.,et al."In situ simultaneous photovoltaic and structural evolution of perovskite solar cells during film formation".Energy & Environmental Science 11.2(2018).