A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode

被引：59

作者：

Yang, Xuyong ^{[1
]}

Divayana, Yoga ^{[1
]}

Zhao, Dewei ^{[1
]}

Leck, Kheng Swee ^{[1
]}

Lu, Fen ^{[2
]}

Tan, Swee Tiam ^{[1
]}

Abiyasa, Agus Putu ^{[1
]}

Zhao, Yongbiao ^{[1
]}

Demir, Hilmi Volkan ^{[1
,2
,3
]}

Sun, Xiao Wei ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Luminous Ctr Excellence Semicond Lighting & Displ, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 639798, Singapore

[3] Bilkent Univ, Dept Phys, UNAM Inst Mat Sci & Nanotechnol, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 23期

基金：

新加坡国家研究基金会; 中国国家自然科学基金;

关键词：

QUANTUM DOTS; INP/ZNS NANOCRYSTALS; INP NANOCRYSTALS; TRANSPORT LAYERS; EFFICIENT; ELECTROLUMINESCENCE; PERFORMANCE; STABILITY;

D O I：

10.1063/1.4769347

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a bright cadmium-free, InP-based quantum dot light-emitting diode (QD-LED) with efficient green emission. A maximum brightness close to 700 cd/m(2) together with a relatively low turn-on voltage of 4.5 V has been achieved. With the design of a loosely packed QD layer resulting in the direct contact of poly[N,N'-bis(4-butylphenyl)-N,N'-bis(phenyl)benzidine] (poly-TPD) and 2,2',2 ''-(1,3,5-benzinetriyl)-tris(1-phenyl-1-H-benzimidazole) (TPBi) in the device, a ternary complementary white QD-LED consisting of blue component (poly-TPD), green component (QDs), and red component (exciplex formed at the interface between poly-TPD and TPBi) has been demonstrated. The resulting white QD-LED shows an excellent color rendering index of 95. (C) 2012 American Institute of Physics.[http://dx.doi.org/10.1063/1.4769347]

引用

页数：4

共 27 条

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