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Two-in-one alcohol-processed PEDOT electrodes produced by solvent exchange for organic solar cells

Energy and Environmental Science, ISSN: 1754-5706, Vol: 16, Issue: 4, Page: 1511-1519
2023
  • 24
    Citations
  • 0
    Usage
  • 13
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    24
    • Citation Indexes
      24
  • Captures
    13
  • Mentions
    1
    • News Mentions
      1
      • News
        1

Most Recent News

Investigators from Huazhong University of Science and Technology Report New Data on Organic Solar Cells (Two-in-one Alcohol-processed Pedot Electrodes Produced By Solvent Exchange for Organic Solar Cells)

2023 APR 18 (NewsRx) -- By a News Reporter-Staff News Editor at Chemicals & Chemistry Daily Daily -- Investigators publish new report on Solar Cells

Article Description

Poly(3,4-ethylenedioxythiophere):poly(styrenesulfonate) (PEDOT:PSS) is a common solution-processed electrode for printable organic solar cells. However, the water-dispersed PEDOT:PSS displays de-wetting issues when deposited on an active layer, which limits its application on printable top electrodes. In this work, we report a solvent exchange method to prepare alcohol-processed PEDOT:PSS. Spontaneous exchange of water and alcohol occurs when aqueous PEDOT:PSS in a dialysis membrane is immersed into alcohol. This is probably due to the polarity difference that induces different speeds to pass through the dialysis membrane. The residual PEDOT:PSS was further dispersed in ethanol and ethanol-based PEDOT:PSS (e-PEDOT:PSS) was obtained. The obtained e-PEDOT:PSS has good wetting ability and high electronic conductivity. The work function of e-PEDOT:PSS was tuned from 4.9 to 5.3 eV by adding an alcohol-based fluorinated formulation (PEDOT:F). The obtained formulation e-PEDOT:PSS was blade coated as the top electrode without additional hole-transporting layers (called 2-in-1 electrodes), and the fabricated devices based on e-PEDOT:PSS showed an efficiency of 14.02%.

Bibliographic Details

Xinyun Dong; Xianmin Zhou; Yang Liu; Sixing Xiong; Jingyu Cheng; Youyu Jiang; Yinhua Zhou

Royal Society of Chemistry (RSC)

Environmental Science; Energy

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