Hydrothermal deposition of CdS on vertically aligned ZnO nanorods for photoelectrochemical solar cell application

Araa Mebdir Holi, Zulkarnain Zainal, Zainal Abidin Talib, Hong Ngee Lim, Chi Chin Yap, Sook Keng Chang, Asmaa Kadim Ayal

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

CdS/ZnO nanorods composite nanofilms were successfully synthesized via hydrothermal method on indium doped tin oxide glass substrates. Sequentially deposited CdS formed cauliflower like nanostructures on vertically aligned ZnO nanorods. The morphological, compositional, structural and optical properties of the films were characterized by field emission scanning electron microscopy, energy dispersive X-ray analysis, X-ray diffraction and ultraviolet–visible spectroscopy. Photoelectrochemical conversion efficiencies were evaluated by photocurrent measurements in a mixture of Na2S and Na2SO3 akaline aqueous solution. The amount of deposit, as well as the diameter and crystallinity of the CdS cauliflower were found to increase with growth time. CdS/ZnO nanorods composite exhibited greater photocurrent response than ZnO nanorod arrays. Besides, the composite film with 90 min of growth duration displayed the highest photocurrent density which is nearly four times greater than plain ZnO nanorods under the illumination of halogen light. The result exhibited remarkable photoconversion efficiency (η) of 1.92 %.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalJournal of Materials Science: Materials in Electronics
DOIs
Publication statusAccepted/In press - 26 Mar 2016

Fingerprint

Nanorods
nanorods
Solar cells
solar cells
Photocurrents
photocurrents
composite materials
Indium
Halogens
Energy dispersive X ray analysis
Composite materials
Composite films
Tin oxides
plains
Field emission
halogens
tin oxides
Conversion efficiency
indium
Structural properties

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Hydrothermal deposition of CdS on vertically aligned ZnO nanorods for photoelectrochemical solar cell application. / Holi, Araa Mebdir; Zainal, Zulkarnain; Talib, Zainal Abidin; Lim, Hong Ngee; Yap, Chi Chin; Chang, Sook Keng; Ayal, Asmaa Kadim.

In: Journal of Materials Science: Materials in Electronics, 26.03.2016, p. 1-8.

Research output: Contribution to journalArticle

Holi, Araa Mebdir ; Zainal, Zulkarnain ; Talib, Zainal Abidin ; Lim, Hong Ngee ; Yap, Chi Chin ; Chang, Sook Keng ; Ayal, Asmaa Kadim. / Hydrothermal deposition of CdS on vertically aligned ZnO nanorods for photoelectrochemical solar cell application. In: Journal of Materials Science: Materials in Electronics. 2016 ; pp. 1-8.
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