PEDOT:PSS薄膜的丝网印刷、后处理改性及在染料敏化太阳能电池中的应用

许頔; 沈沪江; 解俊杰; 王炜; 袁慧慧; 李昱煜; 张焘; 陈薪羽; 何云龙; 张玉梅

doi:10.11777/j.issn1000-3304.2018.18169

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PEDOT:PSS薄膜的丝网印刷、后处理改性及在染料敏化太阳能电池中的应用

研究论文 | 更新时间：2021-01-26

- PEDOT:PSS薄膜的丝网印刷、后处理改性及在染料敏化太阳能电池中的应用
  增强出版
- Screen Printing, Modification via Post-treatment and Application in Dye-sensitized Solar Cells of PEDOT:PSS Films
- 高分子学报 2019年50卷第1期页码：36-43
- 作者机构：
  
  1.中国科学院上海硅酸盐研究所能量转换材料重点实验室　上海 201899
  2.上海第二工业大学环境与材料工程学院　上海 201209
- 作者简介：
  
  E-mail: shenhujiang@mail.sic.ac.cn Hu-jiang Shen, E-mail: shenhujiang@mail.sic.ac.cn
- 基金信息：
  
  国家高技术研究发展计划(863计划，项目号 2014AA052002)、中国科学院科技服务网络计划(项目号 KFJ-SW-STS-152)和上海市科学技术委员会(项目号 15DZ2281200)资助项目()
- DOI：10.11777/j.issn1000-3304.2018.18169
  中图分类号：
- 纸质出版日期：2019-1，
  
  网络出版日期：2018-9-1，
  
  收稿日期：2018-7-23，
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许頔, 沈沪江, 解俊杰, 王炜, 袁慧慧, 李昱煜, 张焘, 陈薪羽, 何云龙, 张玉梅. PEDOT:PSS薄膜的丝网印刷、后处理改性及在染料敏化太阳能电池中的应用[J]. 高分子学报, 2019,50(1):36-43.

Di Xu, Hu-jiang Shen, Jun-jie Xie, Wei Wang, Hui-hui Yuan, Yu-yu Li, Tao Zhang, Xin-yu Chen, Yun-long He, Yu-mei Zhang. Screen Printing, Modification via Post-treatment and Application in Dye-sensitized Solar Cells of PEDOT:PSS Films[J]. Acta Polymerica Sinica, 2019,50(1):36-43.
许頔, 沈沪江, 解俊杰, 王炜, 袁慧慧, 李昱煜, 张焘, 陈薪羽, 何云龙, 张玉梅. PEDOT:PSS薄膜的丝网印刷、后处理改性及在染料敏化太阳能电池中的应用[J]. 高分子学报, 2019,50(1):36-43. DOI： 10.11777/j.issn1000-3304.2018.18169.

Di Xu, Hu-jiang Shen, Jun-jie Xie, Wei Wang, Hui-hui Yuan, Yu-yu Li, Tao Zhang, Xin-yu Chen, Yun-long He, Yu-mei Zhang. Screen Printing, Modification via Post-treatment and Application in Dye-sensitized Solar Cells of PEDOT:PSS Films[J]. Acta Polymerica Sinica, 2019,50(1):36-43. DOI： 10.11777/j.issn1000-3304.2018.18169.

摘要

运用丝网印刷的方式在导电玻璃基底表面涂覆了聚(3

4-乙烯二氧噻吩)(PEDOT):聚苯乙烯磺酸盐混合物(PSS)薄膜，并采用稀H

加甲醇混合溶液后处理的方式对其进行了改性. 使用扫描电子显微镜(SEM)和原子力显微镜(AFM)观察处理前后薄膜的表面形貌及厚度的变化，对比了处理前后薄膜的电导率，并结合X射线衍射(XRD)和X射线光电子能谱(XPS)分析探讨了导致电导率变化的原因. 最后，将PEDOT:PSS薄膜作为对电极组装了染料敏化太阳能电池(DSSC)，运用电化学阻抗谱(EIS)研究了对电极的催化性能，并测试了DSSC的光伏性能. 结果显示，经过后处理改性后，由于PSS被部分去除，PEDOT:PSS薄膜的表面形貌发生了显著改变，厚度变薄，粗糙度升高，电导率提升至原始的3倍以上，对I

–

还原的催化活性升高，且组装的DSSC的性能也有了显著提高，光电转换效率由5.12%提升至6.64%.

Abstract

Poly(3

4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) films were coated on fluorine-doped tin oxide (FTO) conductive glass substrates

via

facile screen printing

followed by a modification. The modification was realized through post-treatment

immersing the as-printed films into a mixed solution consisting of diluted H

and methanol

and baking at 120 °C after 10 min of dipping. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) were used to investigate the surface morphology and the thickness changes of the films before and after treating. Electrical conductivity of the pristine and that of the treated films were calculated and compared

using sheet resistance and thickness

and the result was discussed based on X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analysis. Finally

PEDOT:PSS films were used as counter electrodes of dye-sensitized solar cells (DSSCs). The catalytic activity of the PEDOT:PSS films toward I

–

reduction reaction was characterized by electrochemical impedance spectroscopy (EIS)

and the photovoltaic performance of DSSCs assembled by the films was evaluated under the irradiation of simulated AM 1.5G condition. The results demonstrate that

the amorphous PEDOT:PSS films are uniformly coated on FTO substrates after screen printing

and the surface morphology of PEDOT:PSS experiences significant change after the modification by post-treatment

with significantly decreased thickness and slightly increased roughness. The electrical conductivity has been enhanced to more than three times of that in the pristine film

due to the partial removal of PSS rather than the improvement of crystallinity. The catalytic activity toward I

–

reduction reaction is greatly enhanced

and the photovoltaic performance of the DSSCs assembled is also obviously improved

with the photo conversion efficiency increases from 5.12% to 6.64%. The increased PEDOT/PSS mass ratio

electrical conductivity and roughness of the PEDOT:PSS films after post-treatment is believed to be responsible for the improvedment of the photovoltaic performance of the DSSCs.

关键词

聚(34-乙烯二氧噻吩)后处理电极材料染料敏化太阳能电池

Keywords

Poly(34-ethylenedioxythiophene)Post-treatmentElectrode materialDye-sensitized solar cell

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