Improved catalytic activity of Pt/rGO counter electrode in In2O3-based DSSC

Savisha Mahalingam, Huda Abdullah, Sahbudin Shaari, Andanastuti Muchtar

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A platinum/reduced graphene oxide (Pt/rGO) nanocomposite acting as a counter electrode (CE) was fabricated using a chemical bath deposition method for In2O3-based dye-sensitized solar cell (DSSC) via sol-gel technique. The report analyzes the morphological and electrochemical impedance spectroscopy of the annealing Pt/rGO films at 350, 400, and 450 °C. Micrograph images obtained from field emission scanning electron microscopy demonstrated the annealed films are highly porous. The energy-dispersive X-ray results show that the carbon atoms were homogeneously distributed on the film annealed at 400 °C. A good photovoltaic performance was exhibited with high photocurrent density of 8.1 mA cm−2 and power conversion efficiency (η) of 1.68 % at the Pt/rGO CE annealed at 400 °C. The employed electrochemical impedance spectroscopy analysis quantifies that the Pt/rGO films annealed at 400 °C provide more efficient charge transfer with the lowest effective recombination rate and high electron life time, hence improving the performance of Pt/rGO CE.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalIonics
DOIs
Publication statusAccepted/In press - 18 Jun 2016

Fingerprint

Graphite
Platinum
Oxides
Graphene
catalytic activity
Catalyst activity
graphene
counters
platinum
solar cells
dyes
Electrodes
electrodes
oxides
Electrochemical impedance spectroscopy
Oxide films
oxide films
impedance
Photocurrents
Field emission

Keywords

  • Ce
  • Efficiency
  • Electron transport
  • Morphological
  • Pt/rGO
  • Structural

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Improved catalytic activity of Pt/rGO counter electrode in In2O3-based DSSC. / Mahalingam, Savisha; Abdullah, Huda; Shaari, Sahbudin; Muchtar, Andanastuti.

In: Ionics, 18.06.2016, p. 1-11.

Research output: Contribution to journalArticle

@article{f8ee02a18c0343e694f4673c8ab5e4b6,
title = "Improved catalytic activity of Pt/rGO counter electrode in In2O3-based DSSC",
abstract = "A platinum/reduced graphene oxide (Pt/rGO) nanocomposite acting as a counter electrode (CE) was fabricated using a chemical bath deposition method for In2O3-based dye-sensitized solar cell (DSSC) via sol-gel technique. The report analyzes the morphological and electrochemical impedance spectroscopy of the annealing Pt/rGO films at 350, 400, and 450 °C. Micrograph images obtained from field emission scanning electron microscopy demonstrated the annealed films are highly porous. The energy-dispersive X-ray results show that the carbon atoms were homogeneously distributed on the film annealed at 400 °C. A good photovoltaic performance was exhibited with high photocurrent density of 8.1 mA cm−2 and power conversion efficiency (η) of 1.68 {\%} at the Pt/rGO CE annealed at 400 °C. The employed electrochemical impedance spectroscopy analysis quantifies that the Pt/rGO films annealed at 400 °C provide more efficient charge transfer with the lowest effective recombination rate and high electron life time, hence improving the performance of Pt/rGO CE.",
keywords = "Ce, Efficiency, Electron transport, Morphological, Pt/rGO, Structural",
author = "Savisha Mahalingam and Huda Abdullah and Sahbudin Shaari and Andanastuti Muchtar",
year = "2016",
month = "6",
day = "18",
doi = "10.1007/s11581-016-1759-1",
language = "English",
pages = "1--11",
journal = "Ionics",
issn = "0947-7047",
publisher = "Institute for Ionics",

}

TY - JOUR

T1 - Improved catalytic activity of Pt/rGO counter electrode in In2O3-based DSSC

AU - Mahalingam, Savisha

AU - Abdullah, Huda

AU - Shaari, Sahbudin

AU - Muchtar, Andanastuti

PY - 2016/6/18

Y1 - 2016/6/18

N2 - A platinum/reduced graphene oxide (Pt/rGO) nanocomposite acting as a counter electrode (CE) was fabricated using a chemical bath deposition method for In2O3-based dye-sensitized solar cell (DSSC) via sol-gel technique. The report analyzes the morphological and electrochemical impedance spectroscopy of the annealing Pt/rGO films at 350, 400, and 450 °C. Micrograph images obtained from field emission scanning electron microscopy demonstrated the annealed films are highly porous. The energy-dispersive X-ray results show that the carbon atoms were homogeneously distributed on the film annealed at 400 °C. A good photovoltaic performance was exhibited with high photocurrent density of 8.1 mA cm−2 and power conversion efficiency (η) of 1.68 % at the Pt/rGO CE annealed at 400 °C. The employed electrochemical impedance spectroscopy analysis quantifies that the Pt/rGO films annealed at 400 °C provide more efficient charge transfer with the lowest effective recombination rate and high electron life time, hence improving the performance of Pt/rGO CE.

AB - A platinum/reduced graphene oxide (Pt/rGO) nanocomposite acting as a counter electrode (CE) was fabricated using a chemical bath deposition method for In2O3-based dye-sensitized solar cell (DSSC) via sol-gel technique. The report analyzes the morphological and electrochemical impedance spectroscopy of the annealing Pt/rGO films at 350, 400, and 450 °C. Micrograph images obtained from field emission scanning electron microscopy demonstrated the annealed films are highly porous. The energy-dispersive X-ray results show that the carbon atoms were homogeneously distributed on the film annealed at 400 °C. A good photovoltaic performance was exhibited with high photocurrent density of 8.1 mA cm−2 and power conversion efficiency (η) of 1.68 % at the Pt/rGO CE annealed at 400 °C. The employed electrochemical impedance spectroscopy analysis quantifies that the Pt/rGO films annealed at 400 °C provide more efficient charge transfer with the lowest effective recombination rate and high electron life time, hence improving the performance of Pt/rGO CE.

KW - Ce

KW - Efficiency

KW - Electron transport

KW - Morphological

KW - Pt/rGO

KW - Structural

UR - http://www.scopus.com/inward/record.url?scp=84975104948&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84975104948&partnerID=8YFLogxK

U2 - 10.1007/s11581-016-1759-1

DO - 10.1007/s11581-016-1759-1

M3 - Article

SP - 1

EP - 11

JO - Ionics

JF - Ionics

SN - 0947-7047

ER -