Effect of Zinc Acetate Concentration on Structural, Optical and Electrical Properties of ZnO Thin Films Deposited by Electrostatic Spray on an ITO Substrate

Bhavana N. Joshi, Hyun Yoon, Ho Young Kim, Suk Goo Yoon, Joon Ho Oh, Tae Yeon Seong, Scott C. James

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Polycrstalline zinc oxide (ZnO) thin films were fabricated on indium tin oxide (ITO) substrates by electrostatic spray deposition using propylene glycol as the solvent for potential use in bulk heterojunction polymer solar cells. The microstructure and characteristics of the ZnO/ITO bilayer have been investigated for various precursor concentrations using SEM, AFM, X-ray diffraction, and UV-Visible spectroscopy. The bandgap energy of the bilayer slightly decreases when the zinc acetate dihydrate concentration in the propylene glycol solvent increases from 0.1 to 0.3 M. The ZnO/ITO bilayer shows high figure of merit (12.4 × 10-3 ω-1) and low resistivity (3.78 × 10-3 ω-cm) for a Zn precursor concentration of 0.2 M.

Original languageEnglish
Pages (from-to)H716-H721
JournalJournal of the Electrochemical Society
Volume159
Issue number8
DOIs
Publication statusPublished - 2012

Fingerprint

Zinc Acetate
Zinc Oxide
Zinc oxide
Tin oxides
zinc oxides
indium oxides
Indium
tin oxides
Oxide films
sprayers
Structural properties
acetates
Electrostatics
Propylene Glycol
Electric properties
Zinc
Optical properties
zinc
electrical properties
electrostatics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Materials Chemistry
  • Electrochemistry

Cite this

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abstract = "Polycrstalline zinc oxide (ZnO) thin films were fabricated on indium tin oxide (ITO) substrates by electrostatic spray deposition using propylene glycol as the solvent for potential use in bulk heterojunction polymer solar cells. The microstructure and characteristics of the ZnO/ITO bilayer have been investigated for various precursor concentrations using SEM, AFM, X-ray diffraction, and UV-Visible spectroscopy. The bandgap energy of the bilayer slightly decreases when the zinc acetate dihydrate concentration in the propylene glycol solvent increases from 0.1 to 0.3 M. The ZnO/ITO bilayer shows high figure of merit (12.4 × 10-3 ω-1) and low resistivity (3.78 × 10-3 ω-cm) for a Zn precursor concentration of 0.2 M.",
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T1 - Effect of Zinc Acetate Concentration on Structural, Optical and Electrical Properties of ZnO Thin Films Deposited by Electrostatic Spray on an ITO Substrate

AU - Joshi, Bhavana N.

AU - Yoon, Hyun

AU - Kim, Ho Young

AU - Yoon, Suk Goo

AU - Oh, Joon Ho

AU - Seong, Tae Yeon

AU - James, Scott C.

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