Annealing effect on the structural, morphological, and photovoltaic properties of ZNO-CNTS nanocomposite thin films

Huda Abdullah, Azimah Omar, Izamarlina Asshaari, Mohd. Ambar Yarmo, Mohd Zikri Razali, Sahbudin Shaari, Savisha Mahalingam, Aisyah Bolhan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

ZnO-CNTs thin films were prepared by chemical bath deposition (CBD) method. X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) and electrochemical impedance spectroscopy (EIS) were employed to analyze the influence of annealing temperature effects on the morphological, structural and photovoltaic properties of the ZnO-CNTs thin films. XRD measurement indicated that the crystallite size of ZnO-CNTs hexagonal wurtzite structure varies from 18 nm to 34 nm. FESEM image shows porous structures of ZnO-CNTs thin film annealed at 250, 300 and 350 °C. The CNTs like fibre appeared in the porous structure of the thin film annealed at 250 °C. Photovoltaic performances measured the power conversion efficiency, η, photocurrent density, J sc, open-circuit voltage. V oc and fill factor, FF of the ZnO-CNTs photoanodes. The highest power conversion efficiency of 1.07 % was achieved for the photoanode annealed at 350 °C. The electron transport parameters such as electron lifetime, τ eff, electron recombination lifetime, k eff, effective electron diffusion coefficient, D eff, effective electron diffusion length, L n, series resistance, Ri. charge transport resistance, R cl and transport resistance, R 1 of the ZnO-CNTs photoanode were analyzed accordingly. The annealing temperature of 350 °C can be proposed as a suitable heat treatment effect to obtain a good structural, morphological and photovoltaic properties although with a bad electron transport properties.

Original languageEnglish
Title of host publicationCeramic Engineering and Science Proceedings
PublisherAmerican Ceramic Society
Pages153-162
Number of pages10
Volume35
Edition6
Publication statusPublished - 2014
EventAdvanced Processing and Manufacturing Technologies for Nanostructured and Multifunctional Materials - 38th International Conference on Advanced Ceramics and Composites, ICACC 2014 - Daytona Beach, United States
Duration: 26 Jan 201431 Jan 2014

Other

OtherAdvanced Processing and Manufacturing Technologies for Nanostructured and Multifunctional Materials - 38th International Conference on Advanced Ceramics and Composites, ICACC 2014
CountryUnited States
CityDaytona Beach
Period26/1/1431/1/14

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Nanocomposite films
Annealing
Thin films
Electrons
Field emission
Conversion efficiency
Electron transport properties
X ray diffraction
Scanning electron microscopy
Open circuit voltage
Crystallite size
Photocurrents
Electrochemical impedance spectroscopy
Thermal effects
Charge transfer
Heat treatment
Fibers
Temperature

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Abdullah, H., Omar, A., Asshaari, I., Yarmo, M. A., Razali, M. Z., Shaari, S., ... Bolhan, A. (2014). Annealing effect on the structural, morphological, and photovoltaic properties of ZNO-CNTS nanocomposite thin films. In Ceramic Engineering and Science Proceedings (6 ed., Vol. 35, pp. 153-162). American Ceramic Society.

Annealing effect on the structural, morphological, and photovoltaic properties of ZNO-CNTS nanocomposite thin films. / Abdullah, Huda; Omar, Azimah; Asshaari, Izamarlina; Yarmo, Mohd. Ambar; Razali, Mohd Zikri; Shaari, Sahbudin; Mahalingam, Savisha; Bolhan, Aisyah.

Ceramic Engineering and Science Proceedings. Vol. 35 6. ed. American Ceramic Society, 2014. p. 153-162.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abdullah, H, Omar, A, Asshaari, I, Yarmo, MA, Razali, MZ, Shaari, S, Mahalingam, S & Bolhan, A 2014, Annealing effect on the structural, morphological, and photovoltaic properties of ZNO-CNTS nanocomposite thin films. in Ceramic Engineering and Science Proceedings. 6 edn, vol. 35, American Ceramic Society, pp. 153-162, Advanced Processing and Manufacturing Technologies for Nanostructured and Multifunctional Materials - 38th International Conference on Advanced Ceramics and Composites, ICACC 2014, Daytona Beach, United States, 26/1/14.
Abdullah H, Omar A, Asshaari I, Yarmo MA, Razali MZ, Shaari S et al. Annealing effect on the structural, morphological, and photovoltaic properties of ZNO-CNTS nanocomposite thin films. In Ceramic Engineering and Science Proceedings. 6 ed. Vol. 35. American Ceramic Society. 2014. p. 153-162
Abdullah, Huda ; Omar, Azimah ; Asshaari, Izamarlina ; Yarmo, Mohd. Ambar ; Razali, Mohd Zikri ; Shaari, Sahbudin ; Mahalingam, Savisha ; Bolhan, Aisyah. / Annealing effect on the structural, morphological, and photovoltaic properties of ZNO-CNTS nanocomposite thin films. Ceramic Engineering and Science Proceedings. Vol. 35 6. ed. American Ceramic Society, 2014. pp. 153-162
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AU - Abdullah, Huda

AU - Omar, Azimah

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AU - Yarmo, Mohd. Ambar

AU - Razali, Mohd Zikri

AU - Shaari, Sahbudin

AU - Mahalingam, Savisha

AU - Bolhan, Aisyah

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N2 - ZnO-CNTs thin films were prepared by chemical bath deposition (CBD) method. X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) and electrochemical impedance spectroscopy (EIS) were employed to analyze the influence of annealing temperature effects on the morphological, structural and photovoltaic properties of the ZnO-CNTs thin films. XRD measurement indicated that the crystallite size of ZnO-CNTs hexagonal wurtzite structure varies from 18 nm to 34 nm. FESEM image shows porous structures of ZnO-CNTs thin film annealed at 250, 300 and 350 °C. The CNTs like fibre appeared in the porous structure of the thin film annealed at 250 °C. Photovoltaic performances measured the power conversion efficiency, η, photocurrent density, J sc, open-circuit voltage. V oc and fill factor, FF of the ZnO-CNTs photoanodes. The highest power conversion efficiency of 1.07 % was achieved for the photoanode annealed at 350 °C. The electron transport parameters such as electron lifetime, τ eff, electron recombination lifetime, k eff, effective electron diffusion coefficient, D eff, effective electron diffusion length, L n, series resistance, Ri. charge transport resistance, R cl and transport resistance, R 1 of the ZnO-CNTs photoanode were analyzed accordingly. The annealing temperature of 350 °C can be proposed as a suitable heat treatment effect to obtain a good structural, morphological and photovoltaic properties although with a bad electron transport properties.

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