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Metal coatings on semiconductor particles in glass

Published online by Cambridge University Press:  03 March 2011

Vijay Sukumar ,
Shou-Chen Kao ,
Pratima G.N. Rao  and
Robert H. Doremus
Vijay Sukumar
Affiliation:
Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, New York 12180-3590
Shou-Chen Kao
Affiliation:
Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, New York 12180-3590
Pratima G.N. Rao
Affiliation:
Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, New York 12180-3590
Robert H. Doremus
Affiliation:
Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, New York 12180-3590
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Abstract

Glasses containing semiconductor particles coated with metal were synthesized and studied. Glasses containing CdS and silver were heated to grow the CdS particles first, followed by the growth of metal on them. The solubility of silver in the CdS glass was increased by changing the base glass composition. Optical absorption and transmission electron microscopy results showed that silver coated the CdS particles in these glasses. The CdS particles had to be a critical size before silver grew on them. This critical size was calculated from nucleation theory and was found to be in good agreement with the experimental results. Glasses containing CuCl particles were partially reduced in hydrogen to obtain copper-coated CuCl particles. Absorption spectroscopy and TEM indicated a copper coating on the particles.

Type
Articles
Information
Journal of Materials Research , Volume 8 , Issue 10 , October 1993 , pp. 2686 - 2693
Copyright
Copyright © Materials Research Society 1993

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