InP/ZnS/ZnS Core/Shell Blue Quantum Dots for Efficient Light-Emitting Diodes

Zhang, Wenda1,2,3; Ding, Shihao1; Zhuang, Weidong2,3; Wu, Dan1,4; Liu, Pai1; Qu, Xiangwei1; Liu, Haochen1; Yang, Hongcheng5; Wu, Zhenghui1; Wang, Kai1; Sun, Xiao Wei1,5

2020-09-11

10.1002/adfm.202005303

ADVANCED FUNCTIONAL MATERIALS   影响因子和分区

1616-301X

1616-3028

As the concerns about using cadmium-based quantum dots (QDs) in display are growing worldwide, InP QDs have drawn much attention in quantum dot light-emitting diodes (QLEDs). However, pure blue InP based QLED has been rarely reported. In this work, first of all, pure blue InP/ZnS QDs with emission wavelength of 468 nm and quantum yield of 45% are synthesized. Furthermore, zinc oleate and S-TOP are used as precursors to epitaxially grow the second ZnS shell. The residual zinc stearate reacted with S-TOP to form ZnS shell, which increased the thickness and stability of QDs. Moreover, as the residual precursor of zinc stearate is removed, the current density increased from 13 mA cm(-2)to 121 mA cm(-2)at 8 V for the hole only device. External quantum efficiency increased from 0.6% of InP/ZnS QLED to 1.7% of InP/ZnS/ZnS QLED.

Blue Inp Qled Quantum Dots

SCI ; EI

英语

NI论文

第一 ; 通讯

National Key Research and Development Program of China[2016YFB0401702][2017YFE0120400] ; National Natural Science Foundation of China[51502020][61674074][61405089][61875082] ; Guangdong Province's Key R&D Program: Environmentally Friendly Quantum Dots Luminescent Materials[2019B010924001] ; Guangdong Province's Key R&D Program: Micro-LED Display and Ultra-high Brightness Micro-display technology[2019B010925001] ; Guangdong University Key Laboratory for Advanced Quantum Dot Displays and Lighting[2017KSYS007] ; Natural Science Foundation of Guangdong Province[2017B030306010] ; Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting[ZDSYS201707281632549] ; Shenzhen Peacock Team Project[KQTD2016030111203005] ; Shenzhen Innovation Project[JCYJ20160301113356947][JSGG20170823160757004] ; Doctoral Fund of Ministry of Education of China[2017M610484][2017M612497] ; High Level University Fund of Guangdong Province[G02236004] ; National Basic Research Program of China (973 Program)[2014CB643801]

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

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

WOS:000567828900001

WILEY-V C H VERLAG GMBH

20203809181585

Quantum efficiency ; Nanocrystals ; Zinc ; II-VI semiconductors ; Zinc sulfide ; III-V semiconductors ; Semiconducting indium phosphide ; Organic light emitting diodes (OLED) ; Semiconductor quantum dots

Zinc and Alloys:546.3 ; Semiconducting Materials:712.1 ; Compound Semiconducting Materials:712.1.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Nanotechnology:761 ; Inorganic Compounds:804.2 ; Quantum Theory; Quantum Mechanics:931.4 ; Crystalline Solids:933.1

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Shenzhen Key Lab Adv Quantum Dot Displays & Light, Dept Elect & Elect Engn, Guangdong Univ,Key Lab Adv Quantum Dot Displays &, Shenzhen 518055, Peoples R China
2.Gen Res Inst Nonferrous Met, Natl Engn Res Ctr Rare Earth Mat, Beijing 100088, Peoples R China
3.Grirem Adv Mat Co Ltd, Beijing 100088, Peoples R China
4.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
5.Shenzhen Planck Innovat Technol Ltd, Shenzhen 518116, Peoples R China

Zhang, Wenda,Ding, Shihao,Zhuang, Weidong,et al. InP/ZnS/ZnS Core/Shell Blue Quantum Dots for Efficient Light-Emitting Diodes[J]. ADVANCED FUNCTIONAL MATERIALS,2020,30(49).

Zhang, Wenda.,Ding, Shihao.,Zhuang, Weidong.,Wu, Dan.,Liu, Pai.,...&Sun, Xiao Wei.(2020).InP/ZnS/ZnS Core/Shell Blue Quantum Dots for Efficient Light-Emitting Diodes.ADVANCED FUNCTIONAL MATERIALS,30(49).

Zhang, Wenda,et al."InP/ZnS/ZnS Core/Shell Blue Quantum Dots for Efficient Light-Emitting Diodes".ADVANCED FUNCTIONAL MATERIALS 30.49(2020).