A Simple Method to Enhance Performance of Inverted Planar Perovskite Solar Cells by Using PEDOT∶PSS Doped with DMSO as Hole Transport Layer

Ya-ling WANG; Li-ying YANG; Lan LI; Shou-gen YIN

doi:10.37188/CJL.20220096

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A Simple Method to Enhance Performance of Inverted Planar Perovskite Solar Cells by Using PEDOT∶PSS Doped with DMSO as Hole Transport Layer

Synthesis and Properties of Materials | 更新时间：2022-05-23

- A Simple Method to Enhance Performance of Inverted Planar Perovskite Solar Cells by Using PEDOT∶PSS Doped with DMSO as Hole Transport Layer
  增强出版
- 发光学报 Vol. 43, Issue 5, Pages: 725-735(2022)
- 作者机构：
  
  1.天津中德应用技术大学　能源工程学院,　天津　300350
  2.天津理工大学　材料科学与工程学院,　天津　300384
- 作者简介：
  
  王亚凌(1984-)，女，河北邯郸人，博士，讲师，2018年于天津理工大学获得博士学位，主要从事有机太阳电池、钙钛矿太阳电池等新型光电材料与器件物理的研究。E-mail: wangyalingviolin@126.com
  杨利营(1971-)，男，河北石家庄人，博士，教授，博士生导师，2002年于天津大学获得博士学位，主要从事新型光电材料/储能材料的合成、新型光伏器件与储能器件制备的研究。E-mail: liyingyang@tjut.edu.cn
- 基金信息：
  
  天津市教委科研计划项目(2019KJ138)
- DOI：10.37188/CJL.20220096
  CLC： TM914.4
- Received：21 March 2022，
  
  Revised：2012-03-30，
  
  Published：2022-05
- 稿件说明：
移动端阅览
Ya-ling WANG, Li-ying YANG, Lan LI, et al. A Simple Method to Enhance Performance of Inverted Planar Perovskite Solar Cells by Using PEDOT∶PSS Doped with DMSO as Hole Transport Layer[J]. 发光学报, 2022, 43(5): 725-735.
DOI：

Ya-ling WANG, Li-ying YANG, Lan LI, et al. A Simple Method to Enhance Performance of Inverted Planar Perovskite Solar Cells by Using PEDOT∶PSS Doped with DMSO as Hole Transport Layer[J]. 发光学报, 2022, 43(5): 725-735. DOI： 10.37188/CJL.20220096.

摘要

优化界面接触、增强界面处载流子传输对于提高钙钛矿电池性能具有重要意义。本研究将适量二甲基亚砜（DMSO）添加到聚（3，4-乙烯二氧噻吩）-聚（苯乙烯磺酸盐）（PEDOT∶PSS）空穴传输层中，改善了空穴传输层的导电性和空穴传输特性，有效提高了反式平面钙钛矿太阳能电池光伏性能。短路电流（

）从21.29 mA/cm

提高到22.15 mA/cm

，填充因子

（FF）从76.35%提高到80.09%，转换效率（PCE）从16.02%提高到17.01%。薄膜与器件性能综合测试结果表明，DMSO的掺入使PEDOT∶PSS发生适度相分离，形成更好的PEDOT导电通道，增强了PEDOT∶PSS的导电特性。稳态光致发光光谱呈现出显著的荧光猝灭效应，也表明掺杂 DMSO后PEDOT∶PSS的空穴提取能力得到提高，钙钛矿活性层与阳极之间的空穴传输更加顺畅，有助于实现高达 80%以上的填充因子。本研究为改善反式平面钙钛矿太阳电池或有机太阳电池光伏性能提供了一种高效、简便的方法，具有很好的现实意义。

Abstract

In this work

the photovoltaic properties of inverted planar perovskite solar cells are promoted

via

a simple method by adding Dimethyl sulfoxide(DMSO) into Poly(3

4-ethylenedioxythiophene)-poly(styrenesulfonate)(PEDOT∶PSS) hole transport layer. Compared to the control device based on pristine PEDOT∶PSS

the device with DMSO doping shows different enhancement in short circuit current(

)

fill factor(FF) and power conversion efficiency(PCE)

respectively. The

is increased from 21.29 mA/cm

to 22.15 mA/cm

the FF is increased from 76.35% to 80.09%

and the PCE is increased from 16.02% to 17.01%

showing 4%

5% and 6% enhancement

respectively. A combination of characterizations has been utilized to systematically investigated the effect of DMSO doping on properties of PEDOT∶PSS and perovskite film. It can be found that the incorporation of DMSO leads to a moderate phase separation of PEDOT∶PSS

which causes the PEDOT component to form a better conductive channels

enhancing the conductivity and hole transport ability of PEDOT∶PSS. The steady-state photoluminescence spectra exhibit significant fluorescence quenching

indicating promoted hole extraction ability of PEDOT∶PSS after doping with DMSO. Thus

a more efficient hole transfer between the perovskite active layer and the anode is achieved

which contributes to the high fill factor above 80%. So that an effective and easy approach to improve the photovoltaic performance of inverted planar perovskite solar cells or organic solar cells is provided.

关键词

Keywords

references

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