溶剂预处理结合热退火提升聚噻吩结晶度及其光伏性能

李畅; 章婷; 薛唯

doi:10.3788/fgxb20143502.0202

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溶剂预处理结合热退火提升聚噻吩结晶度及其光伏性能

器件制备及器件物理 | 更新时间：2020-08-12

- 溶剂预处理结合热退火提升聚噻吩结晶度及其光伏性能
- Improvement of Polymer Crystallinity in Poly(3-hexylthiophene)-based Solar Cells via Solvent Vapor Pretreatment-assisted Thermal Annealing
- 发光学报 2014年35卷第2期页码：202-206
- 作者机构：
  
  北京理工大学光电学院北京,100081
- 作者简介：
- 基金信息：
  
  国家自然科学基金（10904002）();教育部留学回国基金();北京理工大学优秀青年教师资助计划资助项目()
- DOI：10.3788/fgxb20143502.0202
  中图分类号： TM914.4
- 收稿日期：2013-10-23，
  
  修回日期：2013-11-18，
  
  纸质出版日期：2014-02-03
- 稿件说明：
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李畅, 章婷, 薛唯. 溶剂预处理结合热退火提升聚噻吩结晶度及其光伏性能[J]. 发光学报, 2014,35(2): 202-206

LI Chang, ZHANG Ting, XUE Wei. Improvement of Polymer Crystallinity in Poly(3-hexylthiophene)-based Solar Cells <em>via</em> Solvent Vapor Pretreatment-assisted Thermal Annealing[J]. Chinese Journal of Luminescence, 2014,35(2): 202-206
李畅, 章婷, 薛唯. 溶剂预处理结合热退火提升聚噻吩结晶度及其光伏性能[J]. 发光学报, 2014,35(2): 202-206 DOI： 10.3788/fgxb20143502.0202.

LI Chang, ZHANG Ting, XUE Wei. Improvement of Polymer Crystallinity in Poly(3-hexylthiophene)-based Solar Cells <em>via</em> Solvent Vapor Pretreatment-assisted Thermal Annealing[J]. Chinese Journal of Luminescence, 2014,35(2): 202-206 DOI： 10.3788/fgxb20143502.0202.

摘要

活性层的微观形貌在很大程度上决定了聚合物光伏器件的性能表现并依赖于制备工艺条件。为了改善薄膜内部分子排布结构并追求较高的器件光电转化效率，采用溶液法制备了基于P3HT：PCBM的聚合物太阳能电池（器件结构:ITO/PEDOT：PSS/P3HT：PCBM/Al），通过改变器件制备流程中活性层退火处理工艺，研究了热退火、溶剂退火以及溶剂预处理结合热处理的双重退火对聚合物太阳电池性能的影响。研究发现:双重退火的光伏器件的各项性能参数均优于单一退火处理器件，获得了3.25%的光电转化效率。原子力显微镜及X射线衍射仪的表征结果进一步证明:双重退火处理能够在促进聚合物给体良好有序结晶的同时保证共混组分适度地相分离，从而有利于光生激子的解离以及载流子的传输。

Abstract

The performances of polymer solar cells (PSCs) depend on processing conditions strongly. In order to increase the crystalline content of polymer and therefore improve the photovoltaic performance of devices

a combinative annealing process featured toluene vapor pretreatment and thermal annealing was introduced to the organic photovoltaic device fabrication

resulting in a high PCE up to 3.25% for P3HT： PCBM-based solar cells. The results of XRD and AFM further revealed that the improvement of

and

were attributed to the improved P3HT crystallinity and chain ordering which facilitated photogenerated exciton dissociation and charge-carrier transport

compared with solvent or thermal annealed samples.

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references

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