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Interfacial charge-transfer loss in dye-sensitized solar cells

Journal of Physical Chemistry C, ISSN: 1932-7447, Vol: 117, Issue: 6, Page: 2734-2739
2013
  • 15
    Citations
  • 0
    Usage
  • 32
    Captures
  • 0
    Mentions
  • 0
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    15
    • Citation Indexes
      15
  • Captures
    32

Article Description

Interfacial charge-transfer loss factors (CTLFs) of dye-sensitized solar cells (DSCs) were studied using a thermionic emission-diffusion theory and electrochemical impedance spectroscopy (EIS). It is found that the subsidiary CTLFs can be quantified including a native charge-transfer loss at the TiO /electrolyte interface in DSC devices. The obtained CTLFs as a probability parameter α were identified as almost matching to dominant resistance-capacitance (RC) time constants obtained from the EIS and its numerical calculation. The quantified CTLFs based on a detailed physical model of quantum-mechanical tunneling and reflection of charge carriers can explain a degradation of open-circuit voltage in DSC devices. © 2013 American Chemical Society.

Bibliographic Details

Dong Won Park; Yonkil Jeong; Jongjin Lee; Jaeyoung Lee; Seung Hyeon Moon

American Chemical Society (ACS)

Materials Science; Energy; Chemistry

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