Influence of the ultrasonic agitation on chemical bath deposition of cadmium sulfide thin films

Jun Young Choi, Kang Jin Kim, Donghwan Kim

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Ultrasonic agitation was applied during the chemical bath deposition of CdS thin films. Ultrasonication resulted in a large difference in surface morphology, growth rate, and optical properties of CdS films. Virtually there were no colloidal particles adsorbed on the surface. The surface roughness measured by atomic force microscopy was reduced by a factor of two. Band gap energy increased to 2.39 eV from 2.37 eV. X-ray patterns showed that the preferred orientation changed from hexagonal(002)/cubic(111) to hexagonal(101). Optical transmission improved in the longer wavelength range larger than 520 nm. The chemical reaction for CdS formation started at a lower temperature under ultrasonication, and dense films were obtained even when the chemical composition of the aqueous solution was far deviated from the optimum conditions.

Original languageEnglish
Pages (from-to)539-542
Number of pages4
JournalConference Record of the IEEE Photovoltaic Specialists Conference
Publication statusPublished - 1997
EventProceedings of the 1997 IEEE 26th Photovoltaic Specialists Conference - Anaheim, CA, USA
Duration: 1997 Sep 291997 Oct 3

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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