Performance enhancement of quantum dot-sensitized solar cells based on polymer nano-composite catalyst

Hyunwoong Seo, Chandu V.V.M. Gopi, Hee Je Kim, Naho Itagaki, Kazunori Koga, Masaharu Shiratani

Research output: Contribution to journalArticle

Abstract

Polymer nano-composite composed of poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) and TiO2 nano-particles was deposited on fluorine-doped tin oxide substrate and applied as an alternative to Au counter electrode of quantum dot-sensitized solar cell (QDSC). It became surface-richer with the increase in nano-particle amount so that catalytic reaction was increased by widened catalytic interface. Electrochemical impedance spectroscopy and cyclic voltammetry clearly demonstrated the enhancement of polymer nano-composite counter electrode. A QDSC based on polymer nano-composite counter electrode showed 0.56 V of VOC, 12.24 mA cm−2 of JSC, 0.57 of FF, and 3.87% of efficiency and this photovoltaic performance was higher than that of QDSC based on Au counter electrode (3.75%).

Original languageEnglish
Pages (from-to)337-342
Number of pages6
JournalElectrochimica Acta
Volume249
DOIs
Publication statusPublished - Sep 20 2017

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

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