Effect of heat treatment on CNT/TiO2 photoelectrode for dye-sensitized solar cells application

Zikri Razali Mohd, Huda Abdullah, Shaari Sahbudin, Mohd. Raihan Taha, Omar Azimah, Mohd. Ambar Yarmo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this research, the CNT/TiO2 nanocomposite solution was prepared using sol-gel method process. Definite amounts of CNT (0.06 g) were sonicated in 30 ml anhydrate 2-propanol. The measured quantities of Titanium (IV) Tetraisopropoxide (TTIP) - 5 ml were introduced into the CNT/2-propanol solution. The CNT/TiO2 paste was doctor-bladed onto the FTO glass and consequently annealed at 250 °;C, 350 °C and 450 °C for 30 min. The effect of annealing temperatures on the CNT/TiO2 thin films was discussed. The CNT/TiO2 thin films were characterized for morphological and electrical performance by Field Emission Scanning Electron Microscopy (FESEM), X-ray Diffraction (XRD), Incident Photon to Charge Carrier Efficiency (IPCE) and IV-Curve Efficiency analysis. The XRD patterns show the thin films major peak at (101) with average anatase phase crystallite size. The CNT/TiO2 thin film's morphological structure composed of compressed and porous distributed composition. The crystal structures were changed upon increasing the annealing temperature. The IV measurement shows that the dye-sensitized solar cell (DSSC) at 450 °C produced highest photoelectric conversion efficiency (η) with 3.88 %. IPCE graph shows the solar cell absorb light within the UV spectrum region. It is revealed that annealing temperature has influence toward photovoltaic performance of the assembled DSSC.

Original languageEnglish
Pages (from-to)151-162
Number of pages12
JournalJournal of Nano Research
Volume28
DOIs
Publication statusPublished - 6 Jul 2014

Fingerprint

heat treatment
solar cells
dyes
carbon nanotubes
Heat treatment
Thin films
2-Propanol
Propanol
Annealing
Charge carriers
Photons
X ray diffraction
thin films
Crystallite size
annealing
Ointments
Titanium
charge carriers
Field emission
Titanium dioxide

Keywords

  • Carbon nanotube
  • Dye-sensitized solar cell
  • Sol-gel method
  • Titanium dioxide

ASJC Scopus subject areas

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

Cite this

Effect of heat treatment on CNT/TiO2 photoelectrode for dye-sensitized solar cells application. / Mohd, Zikri Razali; Abdullah, Huda; Sahbudin, Shaari; Taha, Mohd. Raihan; Azimah, Omar; Yarmo, Mohd. Ambar.

In: Journal of Nano Research, Vol. 28, 06.07.2014, p. 151-162.

Research output: Contribution to journalArticle

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