Hydrophilic carbon/TiO2 colloid composite: a potential counter electrode for dye-sensitized solar cells

Mojgan Kouhnavard, Norasikin Ahmad Ludin, Babak Vazifehkhah Ghaffari, Shoichiro Ikeda, Kamaruzzaman Sopian, Mikio Miyake

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Abstract: A new type of counter electrode (CE), composed of hydrophilic carbon (HC) particle and TiO2 colloid (HC/TiO2), was successfully prepared using doctor blade technique on fluorine-doped tin oxide substrate for dye-sensitized solar cell (DSSC). Properties of HC/TiO2 CE, including crystal structure, surface morphology, roughness, conductivity, and catalytic activity, were analyzed. Results showed that a HC/TiO2 CE with an average thickness of 1 µm contributed to high surface roughness. Cyclic voltammetry further revealed that HC/TiO2 CE displayed good catalytic activity similar to that of Pt electrode, which is mainly attributed to an addition of TiO2 in the electrode. DSSC was fabricated with HC/TiO2 CE. Under one sun illumination (AM 1.5, Pin of 100 mWcm−2), the device exhibited an energy conversion efficiency of 1.9 %, which is comparable to 3.6 % of the cell with Pt electrode under the same experimental conditions. These findings suggest that HC/TiO2 CE is a promising alternative CE for low-cost DSSCs. Graphical Abstract: [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalJournal of Applied Electrochemistry
DOIs
Publication statusAccepted/In press - 28 Dec 2015

Fingerprint

Colloids
Carbon
Electrodes
Composite materials
Catalyst activity
Surface roughness
Dye-sensitized solar cells
Fluorine
Tin oxides
Energy conversion
Sun
Particles (particulate matter)
Conversion efficiency
Cyclic voltammetry
Surface morphology
Lighting
Crystal structure

Keywords

  • Counter electrode
  • Dye-sensitized solar cell
  • Electrochemical catalytic activity
  • Electrochemical stability
  • Energy conversion efficiency
  • Hydrophilic carbon/TiO composite

ASJC Scopus subject areas

  • Electrochemistry
  • Chemical Engineering(all)
  • Materials Chemistry

Cite this

Hydrophilic carbon/TiO2 colloid composite : a potential counter electrode for dye-sensitized solar cells. / Kouhnavard, Mojgan; Ludin, Norasikin Ahmad; Ghaffari, Babak Vazifehkhah; Ikeda, Shoichiro; Sopian, Kamaruzzaman; Miyake, Mikio.

In: Journal of Applied Electrochemistry, 28.12.2015, p. 1-8.

Research output: Contribution to journalArticle

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AU - Ikeda, Shoichiro

AU - Sopian, Kamaruzzaman

AU - Miyake, Mikio

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AB - Abstract: A new type of counter electrode (CE), composed of hydrophilic carbon (HC) particle and TiO2 colloid (HC/TiO2), was successfully prepared using doctor blade technique on fluorine-doped tin oxide substrate for dye-sensitized solar cell (DSSC). Properties of HC/TiO2 CE, including crystal structure, surface morphology, roughness, conductivity, and catalytic activity, were analyzed. Results showed that a HC/TiO2 CE with an average thickness of 1 µm contributed to high surface roughness. Cyclic voltammetry further revealed that HC/TiO2 CE displayed good catalytic activity similar to that of Pt electrode, which is mainly attributed to an addition of TiO2 in the electrode. DSSC was fabricated with HC/TiO2 CE. Under one sun illumination (AM 1.5, Pin of 100 mWcm−2), the device exhibited an energy conversion efficiency of 1.9 %, which is comparable to 3.6 % of the cell with Pt electrode under the same experimental conditions. These findings suggest that HC/TiO2 CE is a promising alternative CE for low-cost DSSCs. Graphical Abstract: [Figure not available: see fulltext.]

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