White emission from polymer/quantum dot ternary nanocomposites by incomplete energy transfer

被引：97
|
作者：
Park, JH
Kim, JY
Chin, BD
Kim, YC
Kim, JK
Park, OO
机构：
[1] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Taejon 305701, South Korea
[2] Korea Inst Sci & Technol, Optoelect Mat Res Ctr, Seoul 130650, South Korea
[3] Samsung SDI Co LTD, Corp R&D Ctr, Yongin 449902, Gyeonggi Do, South Korea
[4] Kyung Hee Univ, Mat Res Ctr Informat Display, Yongin 449701, Gyeonggi Do, South Korea
来源：
NANOTECHNOLOGY | 2004年 / 15卷 / 09期
关键词：
Light emisson - Nanocomposites - UV absorption;
D O I：
10.1088/0957-4484/15/9/018
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
White light emission was obtained from a light-emitting diode prepared from polymer/quantum dot nanocomposites consisting of poly(9,9'-dihexylfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (PDHFPPV) and two kinds of CdSe nanoparticles with different particle size. Blue emission from the polymer, green emission from the similar to3 nm CdSe and red emission from the similar to7 nm CdSe, which is triggered by partial excitation energy transfer from the polymer, jointly contribute to white emission of the organic-inorganic hybrid device. Also, the blue-emitting matrix polymer makes the device preparation process simpler due to its high processability. By controlling the blend ratio, we could obtain a pure white colour from the hybrid device.
引用
收藏
页码：1217 / 1220
页数：4
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