气候变化领域集成服务门户(CCPortal): Tuning halide perovskite energy levels

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DOI	10.1039/d0ee02216k
	Tuning halide perovskite energy levels
	Canil L.; Cramer T.; Fraboni B.; Ricciarelli D.; Meggiolaro D.; Singh A.; Liu M.; Rusu M.; Wolff C.M.; Phung N.; Wang Q.; Neher D.; Unold T.; Vivo P.; Gagliardi A.; De Angelis F.; Abate A.
发表日期	2021
ISSN	17545692
起始页码	1429
结束页码	1438
卷号	14 期号:3
英文摘要	The ability to control the energy levels in semiconductors is compelling for optoelectronic applications. In this study, we managed to tune the work function (WF) of halide perovskite semiconductors using self-assembled monolayers of small molecules to induce stable dipoles at the surface. The direction and intensity of the surface dipoles rely on specific molecule-to-surface interactions. Electron acceptor or donor molecules result in the positive or negative WF shifts up to several hundreds of meV. Our approach provides a versatile tool to control the WF of halide perovskite and adjust the energy level alignment at the interface with charge transport materials in perovskite-based optoelectronics. The impact on perovskite solar cells is reported and discussed in detail with the support of modelling. © 2021 The Royal Society of Chemistry.
英文关键词	Molecules; Perovskite; Charge transport materials; Donor molecules; Electron acceptor; Energy level alignment; Halide perovskites; Optoelectronic applications; Small molecules; Surface interactions; Perovskite solar cells; energy balance; perovskite; science and technology
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/190760
作者单位	Young Investigator Group Active Materials and Interfaces for Stable Perovskite Solar Cells, Helmholtz-Zentrum Berlin für Materialen und Energie, Hahn-Meitner-Platz 1, Berlin, 14109, Germany; Department of Physics and Astronomy, University of Bologna, Viale Berti Pichat 6/2, Bologna, 40127, Italy; Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto Cnr di Scienze e Tecnologie Chimiche "giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, Perugia, 06123, Italy; Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, Perugia, 06123, Italy; Department of Electrical and Computer Engineering, Technical University of Munich, Munich, 80333, Germany; Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, Tampere, FI-33014, Finland; Department Structure and Dynamics of Energy Materials, Helmholtz-Zentrum Berlin für Materialen und Energie, Hahn-Meitner-Platz 1, Berlin, 14109, Germany; Institute of Physics and Astronomy, Universität P...
推荐引用方式 GB/T 7714	Canil L.,Cramer T.,Fraboni B.,et al. Tuning halide perovskite energy levels[J],2021,14(3).
APA	Canil L..,Cramer T..,Fraboni B..,Ricciarelli D..,Meggiolaro D..,...&Abate A..(2021).Tuning halide perovskite energy levels.Energy & Environmental Science,14(3).
MLA	Canil L.,et al."Tuning halide perovskite energy levels".Energy & Environmental Science 14.3(2021).