EFFICIENT WHITE EMITTING COPOLYMERS BASED ON BIPOLAR FLUORENE-<italic style="font-style: italic">co</italic>-DIBENZOTHIOPHENE-S,S-DIOXIDE-<italic style="font-style: italic">co</italic>-CARBAZOLE BACKBONE

Lei Ying; Yan-hu Li; Cai-hong Wei; Min-quan Wang; Wei Yang; Hong-bin Wu; Yong Cao

doi:10.1007/s10118-013-1199-6

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EFFICIENT WHITE EMITTING COPOLYMERS BASED ON BIPOLAR FLUORENE-co-DIBENZOTHIOPHENE-S,S-DIOXIDE-co-CARBAZOLE BACKBONE

PAPER | Updated：2023-01-03

- EFFICIENT WHITE EMITTING COPOLYMERS BASED ON BIPOLAR FLUORENE-co-DIBENZOTHIOPHENE-S,S-DIOXIDE-co-CARBAZOLE BACKBONE
- EFFICIENT WHITE EMITTING COPOLYMERS BASED ON BIPOLAR FLUORENE-co-DIBENZOTHIOPHENE-S,S-DIOXIDE-co-CARBAZOLE BACKBONE
- Chinese Journal of Polymer Science 2013年31卷第1期页码：88-97
- Affiliations：
  
  a.State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640, China
  b.School of Material Science & Engineering, South China University of Technology, Guangzhou 510640, China
- Author bio：
  
  **Wei Yang (杨伟), E-mail: pswyang@scut.edu.cn
- Funds：
  
  State Key Basic Research Project of China(2009CB623602);National Nature Science Foundation of China(21074038;U0634003)
- DOI：10.1007/s10118-013-1199-6
  中图分类号：
- 收稿：2012-05-02，
  
  修回：2012-07-18，
  
  录用：2012-08-01，
  
  纸质出版：2013-01
- Accepted：
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Lei Ying, Yan-hu Li, Cai-hong Wei, 等. EFFICIENT WHITE EMITTING COPOLYMERS BASED ON BIPOLAR FLUORENE-co-DIBENZOTHIOPHENE-S,S-DIOXIDE-co-CARBAZOLE BACKBONE[J]. Chinese Journal of Polymer Science, 2013,31(1):88-97. DOI: 10.1007/s10118-013-1199-6.

Lei Ying, Yan-hu Li, Cai-hong Wei, et al. EFFICIENT WHITE EMITTING COPOLYMERS BASED ON BIPOLAR FLUORENE-co-DIBENZOTHIOPHENE-S,S-DIOXIDE-co-CARBAZOLE BACKBONE[J]. Chinese Journal of Polymer Science, 2013, 31(1): 88-97. DOI: 10.1007/s10118-013-1199-6.
Lei Ying, Yan-hu Li, Cai-hong Wei, 等. EFFICIENT WHITE EMITTING COPOLYMERS BASED ON BIPOLAR FLUORENE-co-DIBENZOTHIOPHENE-S,S-DIOXIDE-co-CARBAZOLE BACKBONE[J]. Chinese Journal of Polymer Science, 2013,31(1):88-97. DOI: 10.1007/s10118-013-1199-6. DOI：

Lei Ying, Yan-hu Li, Cai-hong Wei, et al. EFFICIENT WHITE EMITTING COPOLYMERS BASED ON BIPOLAR FLUORENE-co-DIBENZOTHIOPHENE-S,S-DIOXIDE-co-CARBAZOLE BACKBONE[J]. Chinese Journal of Polymer Science, 2013, 31(1): 88-97. DOI: 10.1007/s10118-013-1199-6. DOI：

摘要

Abstract

Efficient white light emitting polymers were synthesized based on poly(9

9-dioctylfluorene-

-dibenzothiophene-

-dioxide) as blue emitter and a bisphenylamine functionalized 2

3-benzothiadiazole (DPABT) as red emitter. It was found that the incorporation of hole-transporting carbazole moiety into polymer main chain could effectively reduce the hole injection barriers

which can lead to distinctly improved charge balance in the emissive layer. Additionally

the holetransporting carbazole units may form efficient bipolar host with electron-transporting dibenzothiophene-

-dioxide units. The white light emitting diodes based on single polymer PFSOCzDPABT showed the maximum luminous efficiency of 3.3 cd/A with the maximum luminance of 10282 cd/m

and the luminous efficiency showed only 24% roll off at current density of 400 mA/cm

. These Commission Internationale d'Enclairage (CIE) coordinates of the devices changed slightly with the driving voltages increasing from 8 V to 12 V

and were very close to National Television System Committee (NTSC) standard white light emission of (0.33

0.33). The results indicated that the incorporating bipolar host and low band gap DPABT unit was a promising way to achieve efficient single white light emitting copolymers.

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EFFICIENT WHITE EMITTING COPOLYMERS BASED ON BIPOLAR FLUORENE-co-DIBENZOTHIOPHENE-S,S-DIOXIDE-co-CARBAZOLE BACKBONE

EFFICIENT WHITE EMITTING COPOLYMERS BASED ON BIPOLAR FLUORENE-co-DIBENZOTHIOPHENE-S,S-DIOXIDE-co-CARBAZOLE BACKBONE

DOI：10.1007/s10118-013-1199-6

摘要

Abstract

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