Flexible Organic Solar Cells Based on Self-assembly Modified Silver Nanowires Transparent Electrode

Jiang Wu; You-zhan Li; Hao Tang; Xue-ting Yi; Ze-kun Liu; Zhi-yuan Xie

doi:10.11777/j.issn1000-3304.2022.22165

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Flexible Organic Solar Cells Based on Self-assembly Modified Silver Nanowires Transparent Electrode

Research Article | 更新时间：2023-05-22

- Flexible Organic Solar Cells Based on Self-assembly Modified Silver Nanowires Transparent Electrode
- ACTA POLYMERICA SINICA Vol. 54, Issue 1, Pages: 78-86(2023)
- 作者机构：
  
  1.高分子物理与化学国家重点实验室中国科学院长春应用化学研究所长春 130022
  2.中国科学技术大学应用化学与工程学院合肥 230026
- 作者简介：
  
  Zhi-yuan Xie, E-mail: xiezy_n@ciac.ac.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2022.22165
  CLC：
- Published：20 January 2023，
  
  Published Online：17 September 2022，
  
  Received：04 May 2022，
  
  Accepted：22 June 2022
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吴江,李右占,汤浩等.基于自组装修饰银纳米线透明电极的柔性有机太阳能电池[J].高分子学报,2023,54(01):78-86.

Wu Jiang,Li You-zhan,Tang Hao,et al.Flexible Organic Solar Cells Based on Self-assembly Modified Silver Nanowires Transparent Electrode[J].ACTA POLYMERICA SINICA,2023,54(01):78-86.
吴江,李右占,汤浩等.基于自组装修饰银纳米线透明电极的柔性有机太阳能电池[J].高分子学报,2023,54(01):78-86. DOI： 10.11777/j.issn1000-3304.2022.22165.

Wu Jiang,Li You-zhan,Tang Hao,et al.Flexible Organic Solar Cells Based on Self-assembly Modified Silver Nanowires Transparent Electrode[J].ACTA POLYMERICA SINICA,2023,54(01):78-86. DOI： 10.11777/j.issn1000-3304.2022.22165.

摘要

银纳米线(AgNWs)透明电极具有出色的挠曲性和高电导率，是一类非常有潜力的柔性透明电极材料. 然而AgNWs透明电极还存在表面粗糙度大、与衬底的附着力差、表面功函数与活性层能级不匹配等问题. 针对上述问题，采用刮涂方法将AgNWs嵌入聚酰亚胺薄膜中，获得表面平整的AgNWs柔性透明电极，并通过Ag与巯基基团相互作用将五氟苯硫酚自组装到AgNWs电极表面，使AgNWs电极表面功函数从未处理的-4.88 eV提高到-5.06 eV，从而使其与活性层能级更加匹配. 利用该电极作为柔性透明电极，在不采用任何阳极界面层的情况下制备的柔性有机太阳能电池最佳能量转换效率达到11.77%. 本工作为AgNWs柔性电极的制备及功函数调控提供了新的研究思路，并为发展基于AgNWs柔性电极的高效柔性有机太阳能电池提供了一种简单有效的解决方案.

Abstract

Silver nanowires (AgNWs) are a kind of flexible transparent electrode material with superior flexibility and high conductivity. However

AgNWs-based transparent electrode films always suffer some problems

such as large surface roughness

poor adhesion to the substrate

and mismatching between its work function and energy level of the active layer. In this work

the embedded AgNWs in polyimide (PI) substrate was prepared by blade-coating method

which demonstrates the AgNWs transparent electrode with smooth surface. Pentafluorothiophenol (PFTP) was self-assembled on the surface of AgNWs through interaction between Ag and sulfhydryl group

so that the work function of AgNWs electrode is increased from -‍4.88 eV to -‍5.06 eV

rendering it more matched with the energy level of the active layer. Based on the PFTP-modified AgNWs/PI substrate

the flexible organic solar cell without hole transport layer was fabricated by blade coating

and a power conversion efficiency of 11.77% was obtained. This work provides a novel idea for the preparation and work function regulation of AgNWs-based flexible electrode/substrate

and suggests a simple and effective method for the development of efficient flexible organic solar cells based on AgNWs flexible electrode.

关键词

银纳米线自组装柔性有机太阳能

Keywords

Silver nanowiresSelf-assemblyFlexibleOrganic solar cell

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State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology

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