Properties of cadmium sulfide thin films deposited by chemical bath deposition with ultrasonication

Jun Young Choe, Kang Jin Kim, Donghwan Kim

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    Ultrasonic agitation was applied during the chemical bath deposition of CdS thin films. Ultrasonication resulted in a dramatic change in the surface morphology, growth rate, and optical properties of CdS films. There were virtually 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 wavelength range larger than 520nm. 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 deviated far from optimum conditions.

    Original languageEnglish
    Pages (from-to)265-271
    Number of pages7
    JournalMetals and Materials International
    Volume3
    Issue number4
    DOIs
    Publication statusPublished - 1997

    Bibliographical note

    Funding Information:
    This study was supported by the Korea Science and Engineering Foundation under project No. 961-0804-029-2.

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Mechanics of Materials
    • Metals and Alloys
    • Materials Chemistry

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