Effect of surface roughness of TiO2 films on short-circuit current density of photoelectrochemical cell of ITO/TiO2/ PVC-LiClO4/graphite

Mohd Yusri Abd Rahman, Muhamad Mat Salleh, Ibrahim Abu Talib, Muhammad Yahaya

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

This paper reports the effect of surface topography of titanium dioxide films on short-circuit current density of photoelectrochemical solar cell of ITO/TiO2/PVC-LiCLO4/graphite. The films were deposited onto ITO-covered glass substrate by screen-printing technique. The films were tempered at 300°C, 350°C, 400°C, 450°C and 500°C for 30 min to burn out the organic parts and to achieve the films with porous structure. The surface roughness of the films were studied using scanning electron microscope (SEM). Current-voltage relationship of the devices were characterized in dark at room temperature and under illumination of 100 mW cm-2 light from tungsten halogen lamp at 50°C. The device utilising the TiO2 film annealed at 400°C produces the highest short-circuit current density and open-circuit voltage as it posses the smoothest surface topography with the electrolyte. The short-circuit current density and open-circuit voltage of the devices increase with the decreasing grain size of the TiO2 films. The short-circuit current density and open-circuit voltage are 0.6 μA/cm2 and 109 mV respectively.

Original languageEnglish
Pages (from-to)599-602
Number of pages4
JournalCurrent Applied Physics
Volume5
Issue number6
DOIs
Publication statusPublished - Sep 2005

Fingerprint

Photoelectrochemical cells
Graphite
short circuit currents
ITO (semiconductors)
Polyvinyl Chloride
Polyvinyl chlorides
Short circuit currents
surface roughness
Current density
graphite
Surface roughness
current density
cells
Open circuit voltage
open circuit voltage
Surface topography
topography
ITO glass
Tungsten
Halogens

Keywords

  • Photoelectrochemical cell
  • Screen-printing technique
  • Surface topography
  • Titanium dioxide

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science (miscellaneous)

Cite this

Effect of surface roughness of TiO2 films on short-circuit current density of photoelectrochemical cell of ITO/TiO2/ PVC-LiClO4/graphite. / Abd Rahman, Mohd Yusri; Mat Salleh, Muhamad; Talib, Ibrahim Abu; Yahaya, Muhammad.

In: Current Applied Physics, Vol. 5, No. 6, 09.2005, p. 599-602.

Research output: Contribution to journalArticle

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