Effects of surface modification of MoS2:TiO2:Pt counter electrodes by argon plasma treatment on photovoltaic performance of dye-sensitized solar cells

Zun Yuan Ke, Hao Che Hung, Yow-Jon Lin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The MoS2:TiO2:Pt counter electrode (CE) treated using argon plasma provides possibilities to improve photovoltaic performance of dye-sensitized solar cells (DSSCs). The experimental results revealed that the argon plasma-treated MoS2:TiO2:Pt composite influences on the power conversion efficiency by enhancing electrocatalytic activity that serves to increase the short circuit current. The findings show the importance of plasma treatment time in achieving optimization of DSSCs. The induced conversion of chloroplatinic acid into metallic Pt on the CE surfaces by argon plasma treatment promotes the overpotential modification at the MoS2:TiO2:Pt CE/electrolyte interfaces, resulting in the increased probability of the reduction of triiodide to iodide.

Original languageEnglish
Pages (from-to)4908-4913
Number of pages6
JournalJournal of Materials Science: Materials in Electronics
Volume28
Issue number6
DOIs
Publication statusPublished - 2017 Mar 1

Fingerprint

Argon
argon plasma
Surface treatment
counters
solar cells
dyes
Plasmas
Electrodes
electrodes
short circuit currents
iodides
Iodides
electrolytes
Short circuit currents
Electrolytes
Conversion efficiency
acids
optimization
composite materials
Acids

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

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abstract = "The MoS2:TiO2:Pt counter electrode (CE) treated using argon plasma provides possibilities to improve photovoltaic performance of dye-sensitized solar cells (DSSCs). The experimental results revealed that the argon plasma-treated MoS2:TiO2:Pt composite influences on the power conversion efficiency by enhancing electrocatalytic activity that serves to increase the short circuit current. The findings show the importance of plasma treatment time in achieving optimization of DSSCs. The induced conversion of chloroplatinic acid into metallic Pt on the CE surfaces by argon plasma treatment promotes the overpotential modification at the MoS2:TiO2:Pt CE/electrolyte interfaces, resulting in the increased probability of the reduction of triiodide to iodide.",
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