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Chemical Bath Deposition of Zinc Sulfide from Acidic Solutions

Published online by Cambridge University Press:  21 March 2011

Iain P. O'Hare ,
Kuvasani Govender ,
Paul O'Brien  and
David Smyth-Boyle
Iain P. O'Hare
Affiliation:
The University of Manchester, Department of Chemistry and the Materials Science Centre, Oxford Road, Manchester, M13 9PL, U.K
Kuvasani Govender
Affiliation:
The University of Manchester, Department of Chemistry and the Materials Science Centre, Oxford Road, Manchester, M13 9PL, U.K
Paul O'Brien
Affiliation:
The University of Manchester, Department of Chemistry and the Materials Science Centre, Oxford Road, Manchester, M13 9PL, U.K
David Smyth-Boyle
Affiliation:
The University of Durham, Department of Physics, Rochester Building, Science Laboratories, South Road, Durham, DH1 3LE, U.K
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Abstract

At present, the soft processing of materials attracts considerable interest. Chemical bath deposition (CBD) effects film formation by means of a controlled chemical reaction. Adherent, uniform and reproducible films of zinc sulfide (ZnS) have been deposited, upon low iron-content microscope slides, under acidic conditions, from a solution containing zinc chloride, urea and thioacetamide. Scanning electron micrographs of the deposited layers suggest that, as the reaction proceeds, uniform film growth is associated with increasing particle size, rather than continuous nucleation and deposition of new primary particles. Energy Dispersive Analysis by X-Rays (EDAX) spectra are typical of CBD-deposited films of ZnS; signals attributable to elements within the glass substrate are also detected, an observation consistent with the thin nature of the films. Grain size distributions have been investigated using computational image analysis, and an average increase in the diameter of the deposited particles of 33.7 nanometres per hour has been calculated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 668: Symposium H – II-IV Compound Semiconductor Photovoltaic Materials , 2001 , H8.15
Copyright
Copyright © Materials Research Society 2001

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