Graphene as anode electrode for colloidal quantum dots based light emitting diodes

被引：11

作者：

Klekachev, Alexander V. ^{[1
,2
]}

Kuznetsov, Sergey N. ^{[3
]}

Asselberghs, Inge ^{[1
,4
]}

Cantoro, Mirco ^{[1
,2
]}

Mun, Jeong Hun ^{[5
]}

Cho, Byung Jin ^{[5
]}

Stesmans, Andre L. ^{[2
]}

Heyns, Marc M. ^{[1
,6
]}

De Gendt, Stefan ^{[1
,4
]}

机构：

[1] IMEC, B-3001 Louvain, Belgium

[2] Katholieke Univ Leuven, Dept Phys & Astron, B-3001 Louvain, Belgium

[3] Petrozovodsk State Univ, Dept Solid State Phys, Petrozavodsk 185910, Russia

[4] Katholieke Univ Leuven, Dept Chem, B-3001 Louvain, Belgium

[5] Korea Adv Inst Sci & Technol, Dept Elect Engn, Taejon 305701, South Korea

[6] Katholieke Univ Leuven, Dept Met & Mat Engn, B-3001 Louvain, Belgium

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 04期

关键词：

INDIUM TIN OXIDE; WORK FUNCTION; ELECTROLUMINESCENCE; FILMS; NANOCRYSTALS; SPECTROSCOPY; DEVICES; SINGLE; BRIGHT; LAYERS;

D O I：

10.1063/1.4816745

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Graphene films demonstrating low sheet resistance and high transparency in the visible light range are promising to be used as electrodes for light-emitting applications. In this work, we report the implementation of single layer graphene as hole injecting electrode for CdSe/ZnS quantum dot-light emitting diodes (QD-LED). We compare graphene vs. indium-tin-oxide (ITO)-based anode junctions by electroluminescence intensity performance of QD-LEDs. Our results demonstrate better hole injection efficiency for the graphene-based electrode at technologically relevant current densities J < 0.4 A/cm(2), therefore, recommending single layer graphene as a valuable alternative to replace ITO in QD-LED technology. (C) 2013 AIP Publishing LLC.

引用

页数：4

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