CONTROLLING THE SURFACE COMPOSITION OF PCBM IN P3HT/PCBM BLEND FILMS BY USING MIXED SOLVENTS WITH DIFFERENT EVAPORATION RATES

Yue Sun; Jian-gang Liu; Yan Ding; Yan-chun Han

doi:10.1007/s10118-013-1295-7

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CONTROLLING THE SURFACE COMPOSITION OF PCBM IN P3HT/PCBM BLEND FILMS BY USING MIXED SOLVENTS WITH DIFFERENT EVAPORATION RATES

PAPER | Updated：2023-01-03

- CONTROLLING THE SURFACE COMPOSITION OF PCBM IN P3HT/PCBM BLEND FILMS BY USING MIXED SOLVENTS WITH DIFFERENT EVAPORATION RATES
- CONTROLLING THE SURFACE COMPOSITION OF PCBM IN P3HT/PCBM BLEND FILMS BY USING MIXED SOLVENTS WITH DIFFERENT EVAPORATION RATES
- Chinese Journal of Polymer Science 2013年31卷第7期页码：1029-1037
- Affiliations：
  
  State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of the Chinese Academy of Sciences, Changchun 130022, China
- Author bio：
  
  **Yan-chun Han (韩艳春), E-mail: ychan@ciac.jl.cn
- Funds：
  
  National Natural Science Foundation of China(20621401;20834005;51073151);Ministry of Science and Technology of China(2009CB623604)
- DOI：10.1007/s10118-013-1295-7
  中图分类号：
- 收稿：2012-08-27，
  
  修回：2012-11-08，
  
  录用：2012-11-14，
  
  纸质出版：2013-07
- Accepted：
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Yue Sun, Jian-gang Liu, Yan Ding, 等. CONTROLLING THE SURFACE COMPOSITION OF PCBM IN P3HT/PCBM BLEND FILMS BY USING MIXED SOLVENTS WITH DIFFERENT EVAPORATION RATES[J]. Chinese Journal of Polymer Science, 2013,31(7):1029-1037.

Yue Sun, Jian-gang Liu, Yan Ding, et al. CONTROLLING THE SURFACE COMPOSITION OF PCBM IN P3HT/PCBM BLEND FILMS BY USING MIXED SOLVENTS WITH DIFFERENT EVAPORATION RATES[J]. Chinese Journal of Polymer Science, 2013, 31(7): 1029-1037.
Yue Sun, Jian-gang Liu, Yan Ding, 等. CONTROLLING THE SURFACE COMPOSITION OF PCBM IN P3HT/PCBM BLEND FILMS BY USING MIXED SOLVENTS WITH DIFFERENT EVAPORATION RATES[J]. Chinese Journal of Polymer Science, 2013,31(7):1029-1037. DOI： 10.1007/s10118-013-1295-7.

Yue Sun, Jian-gang Liu, Yan Ding, et al. CONTROLLING THE SURFACE COMPOSITION OF PCBM IN P3HT/PCBM BLEND FILMS BY USING MIXED SOLVENTS WITH DIFFERENT EVAPORATION RATES[J]. Chinese Journal of Polymer Science, 2013, 31(7): 1029-1037. DOI： 10.1007/s10118-013-1295-7.

摘要

Abstract

The surface composition of poly(3-hexylthiophene-2

5-diyl) and fullerene derivative [6

6]-phenyl-C61-butyric acid methyl ester (P3HT/PCBM) blend films could be changed by controlling the film formation process

via

using mixed solvents with different evaporation rates. The second solvent

with a higher boiling point than that of the first solvent and much better solubility for PCBM than P3HT

is chosen to mix with the first solvent with a lower boiling point and good solubility for both PCBM and P3HT. The slow evaporation rate of the second solvent provides enough time for PCBM to diffuse upwards during the solvent evaporation. Thus

the weight ratio of PCBM and P3HT (

PCBM

P3HT

) at surface of the blend films was varied from

. 0.1 to

. 0.72

i.e.

it increases about seven times by changing from single solvent to mixed solvents. Meanwhile

the mixed solvents were in favor to form P3HT naonofiber network and enhance phase separation of P3HT/PCBM blend films. As a result

the power conversion efficiency of the device from mixed solvents with slow evaporation process was about 1.5 times of the one from single solvents.

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