Tetrachromatic Hybrid White Light-Emitting Diodes and the Energy Transfer Between Conjugated Polymers and CdSe/ZnS Quantum Dots

被引：9

作者：

Huang, Chun-Yuan ^{[1
,2
]}

Su, Yan-Kuin ^{[3
]}

Chuang, Ricky W. ^{[1
,2
]}

Chen, Ying-Chih ^{[1
,2
]}

Huang, Tsung-Syun ^{[1
,2
]}

Wan, Cheng-Tien ^{[1
,2
]}

机构：

[1] Natl Cheng Kung Univ, Dept Elect Engn, Inst Microelect, Tainan 701, Taiwan

[2] Natl Cheng Kung Univ, Adv Optoelect Technol Ctr, Tainan 701, Taiwan

[3] Kun Shan Univ Technol, Dept Elect Engn, Tainan 710, Taiwan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2009年 / 156卷 / 08期

关键词：

cadmium compounds; conducting polymers; II-VI semiconductors; organic light emitting diodes; semiconductor quantum dots; wide band gap semiconductors; zinc compounds; EMISSION; DBPPV;

D O I：

10.1149/1.3138462

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

070208 [无线电物理];

摘要：

We demonstrate the fabrication and characterization of high efficacy tetrachromatic white light-emitting diodes based on polymer and colloidal quantum dots (QDs). With a certain amount of yellowish green-emitting 2,3-dibutoxy-1,4-poly(phenylene vinylene) (DBPPV) and red-emitting CdSe/ZnS QD composite attached to an InGaN blue chip, stable and pure white light with CIE-1931 chromaticity coordinates of (0.325, 0.342), a correlated color temperature of 5800 K, and a color rendering index of 75 can be obtained. The luminous flux and efficacy of the device operated at 20 mA are 0.55 lm and 330 lm/W, respectively. In this device configuration, the emission of QDs is due not only to the radiative energy transfer from InGaN QWs and DBPPV but also to the Foumlrster energy transfer of excitons in adjacent DBPPV chains. Based on a theoretical calculation, a high efficiency up to 32% is possible.

引用

页码：H625 / H628

页数：4

共 25 条

[1]

The hybridization of CdSe/ZnS quantum dot on InGaN light-emitting diodes for color conversion [J].

Chen, Ying-Chih ;

Huang, Chun-Yuan ;

Su, Yan-Kuin ;

Li, Wen-Liang ;

Yeh, Chia-Hsien ;

Lin, Yu-Chen .

IEEE TRANSACTIONS ON NANOTECHNOLOGY, 2008, 7 (04) :503-507

[2]

Single-step synthesis to control the photoluminescence quantum yield and size dispersion of CdSe nanocrystals [J].

Donegá, CD ;

Hickey, SG ;

Wuister, SF ;

Vanmaekelbergh, D ;

Meijerink, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (02) :489-496

[3]

Hybrid organic-inorganic light-emitting diodes [J].

Ermakov, ON ;

Kaplunov, MG ;

Efimov, ON ;

Yakushchenko, IK ;

Belov, MY ;

Budyka, MF .

MICROELECTRONIC ENGINEERING, 2003, 69 (2-4) :208-212

[4]

Electrophosphorescence from a polymer guest-host system with an iridium complex as guest: Forster energy transfer and charge trapping [J].

Gong, X ;

Ostrowski, JC ;

Moses, D ;

Bazan, GC ;

Heeger, AJ .

ADVANCED FUNCTIONAL MATERIALS, 2003, 13 (06) :439-444

[5]

Colloidal quantum dots [J].

Guyot-Sionnest, Philippe .

COMPTES RENDUS PHYSIQUE, 2008, 9 (08) :777-787

[6]

Hybrid inorganic/organic semiconductor heterostructures with efficient non-radiative energy transfer [J].

Heliotis, G ;

Itskos, G ;

Murray, R ;

Dawson, MD ;

Watson, IM ;

Bradley, DDC .

ADVANCED MATERIALS, 2006, 18 (03) :334-+

[7]

Hybrid CdSe-ZnS quantum dot-InGaN-GaN quantum well red light-emitting diodes [J].

Huang, Chun-Yuan ;

Su, Yan-Kuin ;

Chen, Ying-Chih ;

Tsai, Ping-Chieh ;

Wan, Cheng-Tien ;

Li, Wen-Liang .

IEEE ELECTRON DEVICE LETTERS, 2008, 29 (07) :711-713

[8]

Single-layered hybrid DBPPV-CdSe-ZnS quantum-dot light-emitting diodes [J].

Huang, Chun-Yuan ;

Su, Yan-Kuin ;

Wen, Ten-Chin ;

Guo, Tzung-Fang ;

Tu, Ming-Lung .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2008, 20 (1-4) :282-284

[9]

Adaptation of inorganic quantum dots for stable molecular beacons [J].

Kim, JH ;

Morikis, D ;

Ozkan, M .

SENSORS AND ACTUATORS B-CHEMICAL, 2004, 102 (02) :315-319

[10]

Omni-directional reflectors for light-emitting diodes [J].

Kim, Jong Kyu ;

Xi, J. -Q. ;

Schubert, E. Fred .

LIGHT-EMITING DIODES: RESEARCH, MANUFACTURING, AND APPLICATIONS X, 2006, 6134

← 1 2 3 →