Chem. J. Chinese Universities ›› 2023, Vol. 44 ›› Issue (7): 20230161.doi: 10.7503/cjcu20230161

• Article • Previous Articles     Next Articles

High-performance Organic Solar Cells Based on Trifluorobenzoic Acid Self-assembled Anode Interfacial Layers

HE Wei1, CHEN Fei2, LI Hongxiang1, WANG Jiayu1, QIN Jiaqiang1, CUI Ningbo2, YAN Cenqi1(), CHENG Pei1()   

  1. 1.College of Polymer Science and Engineering,State Key Laboratory of Polymer Materials Engineering
    2.State Key Laboratory of Hydraulics and Mountain River Engineering,College of Water Resource and Hydropower,Sichuan University,Chengdu 610065,China
  • Received:2023-04-01 Online:2023-07-10 Published:2023-06-05
  • Contact: YAN Cenqi, CHENG Pei E-mail:yancenqi@scu.edu.cn;chengpei@scu.edu.cn
  • Supported by:
    the State Key Laboratory of Polymer Materials Engineering, China(sklpme2022-3-02);the Sichuan Science and Technology Program, China(2023YFH0085);the Xizang Science and Technology Program, China(2022wz002)

Abstract:

A self-assembled anode interfacial layer was constructed using 3,4,5-trifluorobenzoic acid(3FBA). Compared with traditional anode interfacial layers including PEDOT∶PSS and MoO3, the 3FBA interfacial layer has higher transmittance and better hydrophobicity. Organic solar cells based on the 3FBA anode interfacial layers achieved high short-circuit current density of 26.86 mA/cm2 and power conversion efficiency(PCE) of 18.16%, significantly excelling devices based on PEDOT∶PSS(26.28 mA/cm2, 17.62%) and devices based on MoO3(26.00 mA/cm2, 17.15%). This work provides a new idea for the design and construction of the anode interfacial layers of organic solar cells.

Key words: Organic solar cell, Anode interfacial layer, 3, 4, 5-Trifluorobenzoic acid

CLC Number: 

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