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Spin control in reduced-dimensional chiral perovskites
Long, Guankui1,2,8; Jiang, Chongyun2,8; Sabatini, Randy1,8; Yang, Zhenyu1; Wei, Mingyang1; Quan, Li Na1; Liang, Qiuming3; Rasmita, Abdullah2; Askerka, Mikhail1; Walters, Grant1; Gong, Xiwen1; Xing, Jun2; Wen, Xinglin2; Quintero-Bermudez, Rafael1; Yuan, Haifeng1; Xing, Guichuan4; Wang, X. Renshaw2; Song, Datong3; Voznyy, Oleksandr1; Zhang, Mingtao5; Hoogland, Sjoerd1; Gao, Weibo2,6,7; Xiong, Qihua2,6; Sargent, Edward H.1
2018-09
Source PublicationNATURE PHOTONICS
ISSN1749-4885
Volume12Issue:9Pages:528-+
Other Abstract

Hybrid organic-inorganic perovskites exhibit strong spin-orbit coupling(1), spin-dependent optical selection rules(2,3) and large Rashba splitting(4-8). These characteristics make them promising candidates for spintronic devices(9) with photonic interfaces. Here we report that spin polarization in perovskites can be controlled through chemical design as well as by a magnetic field. We obtain both spin-polarized photon absorption and spin-polarized photoluminescence in reduced-dimensional chiral perovskites through combined strategies of chirality transfer and energy funnelling. A 3% spin-polarized photoluminescence is observed even in the absence of an applied external magnetic field owing to the different emission rates of sigma(+) and sigma(-) polarized photoluminescence. Three-dimensional perovskites achieve a comparable degree of photoluminescence polarization only under an external magnetic field of 5 T. Our findings pave the way for chiral perovskites as powerful spintronic materials.

DOIhttps://doi.org/10.1038/s41566-018-0220-6
URLView the original
Indexed BySCI
Language英语
WOS Research AreaOptics ; Physics
WOS SubjectOptics ; Physics, Applied
WOS IDWOS:000443022200011
PublisherNATURE PUBLISHING GROUP
The Source to ArticleWOS
Fulltext Access
Citation statistics
Cited Times [WOS]:22   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Applied Physics and Materials Engineering
Corresponding AuthorGao, Weibo; Xiong, Qihua; Sargent, Edward H.
Affiliation1.Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada.
2.Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore.
3.Department of Chemistry, University of Toronto, Toronto, Ontario, Canada. 4Institute of Applied Physics and Materials Engineering, University of Macau, Macao , China.
4.Institute of Applied Physics and Materials Engineering, University of Macau, Macao , China.
5.College of Chemistry, Nankai University, Tianjin, China.
6.MajuLab, CNRS–Université de Nice–NUS–NTU International Joint Research Unit UMI 3654, Singapore, Singapore.
7.The Photonics Institute and Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore, Singapore.
8.Guankui Long, Chongyun Jiang, Randy Sabatini.
Recommended Citation
GB/T 7714
Long, Guankui,Jiang, Chongyun,Sabatini, Randy,et al. Spin control in reduced-dimensional chiral perovskites[J]. NATURE PHOTONICS,2018,12(9):528-+.
APA Long, Guankui.,Jiang, Chongyun.,Sabatini, Randy.,Yang, Zhenyu.,Wei, Mingyang.,...&Sargent, Edward H..(2018).Spin control in reduced-dimensional chiral perovskites.NATURE PHOTONICS,12(9),528-+.
MLA Long, Guankui,et al."Spin control in reduced-dimensional chiral perovskites".NATURE PHOTONICS 12.9(2018):528-+.
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