Photovoltaic properties of ZnO photoanode incorporating with CNTs for dye-sensitized solar cell application

Huda Abdullah, A. Omar, M. Z. Razali, Mohd. Ambar Yarmo

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Zinc oxide carbon nanotube (ZnO-CNTs) thin films were prepared by a chemical bath deposition (CBD) method and immersed in N719 dye for 24 h. The structure and surface morphology of the samples was captured by X-ray diffraction (XRD) and field effect scanning electron microscopy (FESEM) unit, respectively. The photovoltaic properties of ZnO- and ZnO-CNT-based dye-sensitized solar cells (DSSCs) were measured by considering the power conversion efficiency (η), photocurrent density (J sc), open-circuit voltage (V oc), and fill factor (FF). The cell's efficiency doped with single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) reached 0.65 and 0.28 %, respectively. ZnO-based DSSC generated only η = 0.003 %. The electrochemical impedance spectroscopy (EIS) unit was employed to investigate the electron transport properties such as effective electron lifetime (τ eff), effective electron chemical diffusion coefficient (D eff), and effective electron diffusion length (L n). The addition of CNTs has enhanced the photovoltaic properties of the DSSCs and reduced the recombination effect inside the solar cell.

Original languageEnglish
Pages (from-to)1023-1030
Number of pages8
JournalIonics
Volume20
Issue number7
DOIs
Publication statusPublished - 2014

Fingerprint

Carbon Nanotubes
Zinc Oxide
Carbon nanotubes
solar cells
dyes
carbon nanotubes
Zinc oxide
Electrons
Electron transport properties
zinc oxides
Open circuit voltage
Single-walled carbon nanotubes (SWCN)
Photocurrents
Electrochemical impedance spectroscopy
Conversion efficiency
Surface morphology
Solar cells
Coloring Agents
Dyes
electron diffusion

Keywords

  • Carbon nanotubes
  • Dye-sensitized solar cell
  • Electron lifetime
  • Photovoltaic
  • Zinc oxide

ASJC Scopus subject areas

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

Cite this

Photovoltaic properties of ZnO photoanode incorporating with CNTs for dye-sensitized solar cell application. / Abdullah, Huda; Omar, A.; Razali, M. Z.; Yarmo, Mohd. Ambar.

In: Ionics, Vol. 20, No. 7, 2014, p. 1023-1030.

Research output: Contribution to journalArticle

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AB - Zinc oxide carbon nanotube (ZnO-CNTs) thin films were prepared by a chemical bath deposition (CBD) method and immersed in N719 dye for 24 h. The structure and surface morphology of the samples was captured by X-ray diffraction (XRD) and field effect scanning electron microscopy (FESEM) unit, respectively. The photovoltaic properties of ZnO- and ZnO-CNT-based dye-sensitized solar cells (DSSCs) were measured by considering the power conversion efficiency (η), photocurrent density (J sc), open-circuit voltage (V oc), and fill factor (FF). The cell's efficiency doped with single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) reached 0.65 and 0.28 %, respectively. ZnO-based DSSC generated only η = 0.003 %. The electrochemical impedance spectroscopy (EIS) unit was employed to investigate the electron transport properties such as effective electron lifetime (τ eff), effective electron chemical diffusion coefficient (D eff), and effective electron diffusion length (L n). The addition of CNTs has enhanced the photovoltaic properties of the DSSCs and reduced the recombination effect inside the solar cell.

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