Performance and Dielectric Property of Single/Double Acceptor Based Planar Heterojuntion Organic Photovoltaic Cells with P3HT Donor

WANG Chao; YU Jun-le; YANG Fang; WEI Bin; ZHENG Yan-qiong

doi:10.3788/fgxb20183903.0329

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Performance and Dielectric Property of Single/Double Acceptor Based Planar Heterojuntion Organic Photovoltaic Cells with P3HT Donor

更新时间：2020-08-12

- Performance and Dielectric Property of Single/Double Acceptor Based Planar Heterojuntion Organic Photovoltaic Cells with P3HT Donor
- Chinese Journal of Luminescence Vol. 39, Issue 3, Pages: 329-336(2018)
- 作者机构：
  
  1. 上海大学材料科学与工程学院上海,200072
  2. 上海大学新型显示技术与应用集成教育部重点实验室上海,200072
- 作者简介：
- 基金信息：
  
  Supported by National Natural Scientific Foundation of China for Youth(61504077);S
- DOI：10.3788/fgxb20183903.0329
  CLC： TN383+.1
- Received：26 July 2017，
  
  Revised：19 October 2017，
  
  Published Online：15 November 2017，
  
  Published：05 March 2018
- 稿件说明：
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王超, 余俊乐, 杨芳等. 基于P3HT给体的单/双受体平面异质结电池性能及其介电特性[J]. 发光学报, 2018,39(3): 329-336

WANG Chao, YU Jun-le, YANG Fang etc. Performance and Dielectric Property of Single/Double Acceptor Based Planar Heterojuntion Organic Photovoltaic Cells with P3HT Donor[J]. Chinese Journal of Luminescence, 2018,39(3): 329-336
王超, 余俊乐, 杨芳等. 基于P3HT给体的单/双受体平面异质结电池性能及其介电特性[J]. 发光学报, 2018,39(3): 329-336 DOI： 10.3788/fgxb20183903.0329.

WANG Chao, YU Jun-le, YANG Fang etc. Performance and Dielectric Property of Single/Double Acceptor Based Planar Heterojuntion Organic Photovoltaic Cells with P3HT Donor[J]. Chinese Journal of Luminescence, 2018,39(3): 329-336 DOI： 10.3788/fgxb20183903.0329.

摘要

为了研究分析界面电荷等特性对器件的影响，制备了基于P3HT给体的单/双受体平面异质结（PHJ）有机太阳能电池（OPV）。首先研究了P3HT膜厚、P3HT溶剂和P3HT膜层的干燥时间对器件性能的影响。为了提高P3HT/SubPc PHJ电池的性能，采用双受体的三元器件结构（P3HT/SubNc/SubPc），制备了结构为ITO/PEDOT∶PSS/P3HT/SubNc/SubPc/BCP/Al的三元瀑布型OPV器件并研究了SubNc层厚度对其性能的影响。结果表明，在二元器件（P3HT/SubPc）体系中，P3HT溶于氯仿和1，2-二氯苯混合溶剂，成膜后干燥10 min退火获得的器件性能最佳。在三元器件中，随着SubNc厚度的增大，器件光电转换效率（PCE）先增大后减小。当SubNc厚度为5 nm时，器件PCE达到最大。相比于二元器件，三元器件的各项性能得到明显提升。最后，比较研究了不同厚度SubNc薄膜对器件介电特性的影响。

Abstract

To investigate the influence of interface charge on the performance of organic photovoltaic cells (OPVs)

the single/double acceptor based planar heterojunction (PHJ) OPV based on P3HT donor were fabricated. Firstly

the effect of poly (3-hexylthiophene) (P3HT) film thickness

P3HT solvent

and the drying time of P3HT film on device performance was studied. To further improve the P3HT/SubPc PHJ performance

the cascade structure of ITO/PEDOT:PSS/P3HT/chloroboron (Ⅲ) subnaphthalocyanine (SubNc)/boron subphthalocyanine chloride (SubPc)/BCP/Al including double acceptors was fabricated

and the influence of SubNc thickness was also investigated. In the single acceptor system

by using the mixed solvent (

(chloroform):

(ODCB)=1:1) and drying in air for 10 min

the obtained P3HT film achieves the highest performance. While in the cascade structure

the power conversion efficiency (PCE) firstly rises then declines with the increase of SubNc thickness. When the SubNc thickness is 5 nm

the PCE is the highest. The photovoltaic parameters of cascade cell are all improved compared with the single acceptor based cells. Finally

to get insight into the physical mechanism between the interface charge and device performance

the effect of SubNc thickness on the dielectric characteristic of cascade cells was studied.

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references

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