Ultrahighly Efficient White Quantum Dot Light-Emitting Diodes Operating at Low Voltage - Details

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Abstract：

Achieving　efficient　white　quantum　dot　light-emitting　diodes　(WQLEDs)　is　highly　desired　because　of　their　promising　applications　in　general　illumination　and　display　backlight　systems.　Herein,　a　highly　efficient　WQLED　with　an　extremely　low　input　voltage　is　reported,　which　is　fabricated　via　an　all-solution　process　by　using　an　emitting　layer　with　a　mixture　of　red-,　blue-,　and　green-emitting　quantum　dots.　When　a　facile　strategy　of　light　outcoupling　with　an　optical　lens　is　introduced,　the　device　shows　a　maximum　external　quantum　efficiency　of　28.4%,　which　is　the　highest　value　reported　so　far.　Moreover,　the　device　exhibits　a　standard　white　emission　with　International　Commission　on　Illumination　(CIE)　coordinates　of　(0.36,　0.34)　at　an　extremely　low　input　voltage　of　3.2 V.　This　work　provides　a　promising　way　for　achieving　high-performance　white　quantum-dot　light-emitting　diodes　with　low　driving　voltage.　©　2020　Wiley-VCH　GmbH

Keyword：

high-efficiency; light outcoupling; low voltage; quantum dots; white light

Community：

[ 1 ] [Zhu, Y.]Institute of Optoelectronic Technology, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Xu, R.]Fuzhou Superlattice Science and Technology Co. Ltd., Fuzhou, 350116, China
[ 3 ] [Zhou, Y.]Fuzhou Superlattice Science and Technology Co. Ltd., Fuzhou, 350116, China
[ 4 ] [Xu, Z.]Institute of Optoelectronic Technology, Fuzhou University, Fuzhou, 350116, China
[ 5 ] [Liu, Y.]Institute of Optoelectronic Technology, Fuzhou University, Fuzhou, 350116, China
[ 6 ] [Tian, F.]Institute of Optoelectronic Technology, Fuzhou University, Fuzhou, 350116, China
[ 7 ] [Zheng, X.]Institute of Optoelectronic Technology, Fuzhou University, Fuzhou, 350116, China
[ 8 ] [Ma, F.]Institute of Optoelectronic Technology, Fuzhou University, Fuzhou, 350116, China
[ 9 ] [Alsharafi, R.]Institute of Optoelectronic Technology, Fuzhou University, Fuzhou, 350116, China
[ 10 ] [Hu, H.]Institute of Optoelectronic Technology, Fuzhou University, Fuzhou, 350116, China
[ 11 ] [Guo, T.]Institute of Optoelectronic Technology, Fuzhou University, Fuzhou, 350116, China
[ 12 ] [Kim, T.W.]Department of Electronic Engineering, Hanyang University, Seoul, 133-791, South Korea
[ 13 ] [Li, F.]Institute of Optoelectronic Technology, Fuzhou University, Fuzhou, 350116, China

Reprint 's Address：

李福山
[Li, F.]Institute of Optoelectronic Technology, Fuzhou UniversityChina

Email：

fsli@fzu.edu.cn

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Source ：

Advanced Optical Materials

ISSN： 2195-1071

Year： 2020

9 . 9 2 6

JCR@2020

8 . 0 0 0

JCR@2023

ESI HC Threshold：196

JCR Journal Grade：1

CAS Journal Grade：1

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 0

Affiliated Colleges：

物理与信息工程学院、微电子学院本学院/部未明确归属的数据

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