EFFICIENT DEEP-RED ORGANIC LIGHT-EMITTING DIODES BASED ON BLENDING MEH-PPV WITH A SMALL MOLECULE COMPOUND

Chun Li; Ju Huang; Jian-hua Zou; Miao Xu; Wen-jin Zeng; Jun-biao Peng

doi:10.1007/s10118-011-1076-0

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EFFICIENT DEEP-RED ORGANIC LIGHT-EMITTING DIODES BASED ON BLENDING MEH-PPV WITH A SMALL MOLECULE COMPOUND

PAPER | Updated：2021-06-21

- EFFICIENT DEEP-RED ORGANIC LIGHT-EMITTING DIODES BASED ON BLENDING MEH-PPV WITH A SMALL MOLECULE COMPOUND
- EFFICIENT DEEP-RED ORGANIC LIGHT-EMITTING DIODES BASED ON BLENDING MEH-PPV WITH A SMALL MOLECULE COMPOUND
- Chinese Journal of Polymer Science 2011年29卷第5期页码：609-614
- Affiliations：
  
  Institute of Polymer Optoelectronic Materials and Devices, Key Laboratory of Special Functional Materials (MOE), South China University of Technology (SCUT), Guangzhou 510640, China
- Author bio：
  
  **Jun-biao Peng (彭俊彪), E-mail: psjbpeng@scut.edu.cn
- Funds：
  
  National Natural Science Foundation of China(61036007;60937001);Ministry of Science and Technology of the People's Republic of China(2009CB930604;2009CB623604)
- DOI：10.1007/s10118-011-1076-0
  中图分类号：
- 收稿：2010-10-21，
  
  修回：2011-01-03，
  
  录用：2011-01-19，
  
  纸质出版：2011
- Accepted：
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Chun Li, Ju Huang, Jian-hua Zou, 等. EFFICIENT DEEP-RED ORGANIC LIGHT-EMITTING DIODES BASED ON BLENDING MEH-PPV WITH A SMALL MOLECULE COMPOUND[J]. Chinese Journal of Polymer Science, 2011,29(5):609-614.

Chun Li, Ju Huang, Jian-hua Zou, et al. EFFICIENT DEEP-RED ORGANIC LIGHT-EMITTING DIODES BASED ON BLENDING MEH-PPV WITH A SMALL MOLECULE COMPOUND[J]. Chinese Journal of Polymer Science, 2011, 29(5): 609-614.
Chun Li, Ju Huang, Jian-hua Zou, 等. EFFICIENT DEEP-RED ORGANIC LIGHT-EMITTING DIODES BASED ON BLENDING MEH-PPV WITH A SMALL MOLECULE COMPOUND[J]. Chinese Journal of Polymer Science, 2011,29(5):609-614. DOI： 10.1007/s10118-011-1076-0.

Chun Li, Ju Huang, Jian-hua Zou, et al. EFFICIENT DEEP-RED ORGANIC LIGHT-EMITTING DIODES BASED ON BLENDING MEH-PPV WITH A SMALL MOLECULE COMPOUND[J]. Chinese Journal of Polymer Science, 2011, 29(5): 609-614. DOI： 10.1007/s10118-011-1076-0.

摘要

Abstract

Efficient deep-red organic light-emitting diodes (OLEDs) were investigated based on the blend of poly[2- methoxy-5-(2'-ethyl-hexyloxy)-1

4-phenylene vinylene] (MEH-PPV) with 4

7-bis(5-(7-(9H-carbazol-9-yl)-9

9-dioctyl-9H-fluoren- 2-yl)thiophen-2-yl)benzo[c] [1

5] thiadiazole (compound 1). By optimizing the blend ratio

the turn-on voltage of the devices was significantly reduced from 4.9 V to 2.4 V. A highest external quantum efficiency of 2.56% was achieved at a blend ratio of 95:5 (wt) for compound 1: MEH-PPV. The CIE coordinate was measured to be (0.70

0.30)

with the luminescence peak at around 680 nm. Based on experimental observations the improvement mechanism is described.

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