Spin Quantum Dot Light-Emitting Diodes Enabled by 2D Chiral Perovskite with Spin-Dependent Carrier Transport

Wang, Qingqian1,2; Zhu, Hongmei1; Tan, Yangzhi1,3; Hao, Junjie1,4; Ye, Taikang1; Tang, Haodong1,4; Wang, Zhaojin1; Ma, Jingrui1; Sun, Jiayun1,3; Zhang, Tianqi1; Zheng, Fankai1; Zhang, Wenda1; Choi, Hoi Wai3; Choy, Wallace C. H.3; Wu, Dan5; Sun, Xiao Wei1; Wang, Kai1

2023-12-01

10.1002/adma.202305604

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

Chiral-induced spin selectivity (CISS) effect provides innovative approach to spintronics and quantum-based devices for chiral materials. Different from the conventional ferromagnetic devices, the application of CISS effect is potential to operate under room temperature and zero applied magnetic field. Low dimensional chiral perovskites by introducing chiral amines are beginning to show significant CISS effect for spin injection, but research on chiral perovskites is still in its infancy, especially on spin-light emitting diode (spin-LED) construction. Here, the spin-QLEDs enabled by 2D chiral perovskites as CISS layer for spin-dependent carrier injection and CdSe/ZnS quantum dots (QDs) as light emitting layer are reported. The regulation pattern of the chirality and thickness of chiral perovskites, which affects the circularly polarized electroluminescence (CP-EL) emission of spin-QLED, is discovered. Notably, the spin injection polarization of 2D chiral perovskites is higher than 80% and the CP-EL asymmetric factor (g(CP-EL)) achieves up to 1.6 x 10(-2). Consequently, this work opens up a new and effective approach for high-performance spin-LEDs.

chiral induced spin selectivity chiral perovskites quantum dots spin light emitting diodes

SCI ; EI

英语

NI论文

第一 ; 通讯

National Natural Science Foundation of China["62122034","62205138","12204229"] ; Guangdong Basic and Applied Basic Research Foundation[2022A1515011071] ; Shenzhen Basic Research General Program[JCYJ20210324104413036] ; Shenzhen Stable Support Research Foundation[20220717215521001] ; Natural Science Foundation of Top Talent of Shenzhen Technology University (SZTU)[GDRC202110] ; China Postdoctoral Science Foundation["2021M691397","2021M691411"] ; null[2022YFB3606504]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001112944900001

WILEY-V C H VERLAG GMBH

20234915163880

Amines ; Cadmium compounds ; Electroluminescence ; II-VI semiconductors ; Nanocrystals ; Organic light emitting diodes (OLED) ; Perovskite ; Quantum chemistry

Minerals:482.2 ; Electricity: Basic Concepts and Phenomena:701.1 ; Semiconducting Materials:712.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Light, Optics and Optical Devices:741 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Organic Compounds:804.1 ; Crystalline Solids:933.1

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Inst Nanosci & Applicat, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
2.Henan Acad Sci, Inst Phys, Zhengzhou 450046, Peoples R China
3.Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong 999077, Peoples R China
4.Shenzhen Technol Univ, Coll Integrated Circuits & Optoelect Chips, Shenzhen 518118, Peoples R China
5.Shenzhen Technol Univ, Coll New Mat & New Energies, Shenzhen 518118, Peoples R China

Wang, Qingqian,Zhu, Hongmei,Tan, Yangzhi,et al. Spin Quantum Dot Light-Emitting Diodes Enabled by 2D Chiral Perovskite with Spin-Dependent Carrier Transport[J]. ADVANCED MATERIALS,2023.

Wang, Qingqian.,Zhu, Hongmei.,Tan, Yangzhi.,Hao, Junjie.,Ye, Taikang.,...&Wang, Kai.(2023).Spin Quantum Dot Light-Emitting Diodes Enabled by 2D Chiral Perovskite with Spin-Dependent Carrier Transport.ADVANCED MATERIALS.

Wang, Qingqian,et al."Spin Quantum Dot Light-Emitting Diodes Enabled by 2D Chiral Perovskite with Spin-Dependent Carrier Transport".ADVANCED MATERIALS (2023).