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Fabrication and Characterization of CdS Thin Films: Study of the adhesion of Il-VI compound semiconductors for applications to light emitting and absorbing devices

Published online by Cambridge University Press:  10 February 2011

Hyun Shik Kang ,
Gi Eun Cho ,
Kyung Wha Kim  and
Peter D. Persans
Hyun Shik Kang
Affiliation:
Department. of Physics Education, Chonbuk Nat'l Univ. Chonju, Chonbuk, 560-756, S. Korea
Gi Eun Cho
Affiliation:
Department. of Physics Education, Chonbuk Nat'l Univ. Chonju, Chonbuk, 560-756, S. Korea
Kyung Wha Kim
Affiliation:
Department. of Physics Education, Chonbuk Nat'l Univ. Chonju, Chonbuk, 560-756, S. Korea
Peter D. Persans
Affiliation:
Department of Physics, Applied Physics, and Astronomy and Center for Integrated Electronics Rensselaer Polytechnic Institude Troy, NY, 12180, U.S.A
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Abstract

The structural and optoelectronic properties of polycrystalline CdS films, fabricated by three different methods, are compared to one another for the purpose of preparing CdTe/CdS solar cells. The three methods were: alternated spraying of cation and anion solution at room temperature, spray pyrolysis, and chemical bath deposition. We studied the surface morphology and crystal quality and texture by scanning electron and optical microscopy and x-ray diffraction. All films had a well-developed wurtzite structure. Films grown by the alternated-spray method and the chemical bath method consist of randomly-oriented crystallites with dimensions <0.5 microns. Annealing at 400°C increases the crystallite size slightly. Films which were grown by pyrolysis at substrate temperatures from 400°C to 500°C were oriented in the <002> direction. For growth by pyrolysis at 500°C, the surface is rough on a lateral scale of 0.1 to 0.3 microns.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 410: Symposium S – Covalent Ceramics III-Science and Technology of Non-Oxides , 1995 , 51
Copyright
Copyright © Materials Research Society 1996

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References

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