Influence of structural and chemical properties on electron transport in mesoporous ZnO-based dye-sensitized solar cell

Huda Abdullah, N. P. Ariyanto, B. Yuliarto, Izamarlina Asshaari, A. Omar, M. Z. Razali

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Two chemical bath deposition (CBD) solutions were prepared at two different temperatures of 60 and 80 °C for dye-sensitized solar cell (DSSC) application. The deposition time was varied from 12, 18, and 24 h. The X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) analysis confirmed a transformation of hydrozincite into ZnO after calcined at 300 °C. The flower-like structure was observed by scanning electron microscopy (SEM) analysis. The ZnO photoanode deposited at 80 °C for 24 h showed the highest incident photon to charge carrier efficiency (IPCE) value of 5.25 %. The power conversion efficiency, η increased from 1.81 to 2.45 % for the photoanode deposited at 60 and 80 °C, respectively. The effective electron lifetimes, τ eff of 6.36 ms was measured as much shorter than the TiO2-based DSSC (τ eff of 25 to 160 ms). The effective electron diffusion coefficient, D eff, increased from 1.7 × 10-3 to 4.7 × 10-3 cm2.s-1 when the deposition temperature increases from 60 to 80 °C. Effective rate constant for recombination, k eff of 157 s-1 was calculated for both samples. The results and analysis of the film's surface structure, morphology, electron diffusion, and recombination inside the mesoporous ZnO photoanode proved the applicability of ZnO for the DSSC's application.

Original languageEnglish
Pages (from-to)251-261
Number of pages11
JournalIonics
Volume21
Issue number1
DOIs
Publication statusPublished - 1 Jan 2015

Fingerprint

chemical properties
Chemical properties
Structural properties
electron diffusion
solar cells
dyes
Electrons
electron recombination
electrons
Charge carriers
Surface structure
Conversion efficiency
Fourier transform infrared spectroscopy
charge carriers
baths
Rate constants
Photons
diffusion coefficient
infrared spectroscopy
X ray diffraction

Keywords

  • Chemical bath deposition (CBD)
  • Dye-sensitized solar cell (DSSC)
  • Electrochemical impedance spectroscopy (EIS)
  • Electrons

ASJC Scopus subject areas

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

Cite this

Influence of structural and chemical properties on electron transport in mesoporous ZnO-based dye-sensitized solar cell. / Abdullah, Huda; Ariyanto, N. P.; Yuliarto, B.; Asshaari, Izamarlina; Omar, A.; Razali, M. Z.

In: Ionics, Vol. 21, No. 1, 01.01.2015, p. 251-261.

Research output: Contribution to journalArticle

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