Highly Efficient Green-Light-Emitting Diodes Based on CdSe@ZnS Quantum Dots with a Chemical-Composition Gradient

被引：257

作者：

Bae, Wan Ki ^{[1
,3
]}

Kwak, Jeonghun ^{[3
]}

Park, Ji Won ^{[2
]}

Char, Kookheon ^{[1
]}

Lee, Changhee ^{[3
]}

Lee, Seonghoon ^{[2
]}

机构：

[1] Seoul Natl Univ, Sch Chem & Biol Engn, Ctr Funct Polymer Thin Films, Seoul 151744, South Korea

[2] Seoul Natl Univ, Natl Core Res Ctr, NANO Syst Inst, Sch Chem, Seoul 151747, South Korea

[3] Seoul Natl Univ, Sch Elect Engn & Comp Sci, ISRC, Seoul 151744, South Korea

来源：

ADVANCED MATERIALS | 2009年 / 21卷 / 17期

关键词：

SEMICONDUCTOR NANOCRYSTALS; ELECTROLUMINESCENCE; CLUSTERS; EMISSION; BRIGHT;

D O I：

10.1002/adma.200801908

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly efficient green-1ight-emitting diodes (LEDs) based on CdSe@ZnS quantum dots (QDs) with a chemical-composition gradient are demonstrated. Through the moderate control of QD coverage in multilayered devices, excellent device performance has been achieved. The color-saturated green-light emission (see figure for Commission Internationale de I'Eclairage (CIE) co-ordinates) is mainly from the QD layers (more than 99% of total emission).

引用

页码：1690 / +

页数：6

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