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Uv Absorption Spectra and Photolysis of Some Group II and Group VI Alkyls

Published online by Cambridge University Press:  21 February 2011

S. J. C. Irvine ,
J. B. Mullin ,
D. J. Robbins  and
J. L. Glasper
S. J. C. Irvine
Affiliation:
Royal Signals and Radar Establishment St Andrews Road, Malvern, Worcs., U.K.
J. B. Mullin
Affiliation:
Royal Signals and Radar Establishment St Andrews Road, Malvern, Worcs., U.K.
D. J. Robbins
Affiliation:
Royal Signals and Radar Establishment St Andrews Road, Malvern, Worcs., U.K.
J. L. Glasper
Affiliation:
Royal Signals and Radar Establishment St Andrews Road, Malvern, Worcs., U.K.
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Abstract

A preliminary study has been made of the UV photolysis of metal-organic compounds of Hg, Cd and Te which could be used for low-temperature, selective-area deposition of cadmium mercury telluride (CMT). High-resolution UV absorption spectra have been measured for dimethylcadmium (CdMe2), dimethylmercury (HgMe2) and diethyltelluride (TeEt2). Possible modes for photodissociation are discussed in the light of these results. The photodissociation of these alkyls was attempted in a hydrogen stream at atmospheric pressure using a mercury-xenon lamp, deposition being being onto a silica reaction tube. Yields of Cd, Hg and Te were measured under different deposition conditions to determine the dependence on UV intensity, alkyl concentration and flow velocity.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 29: Symposium I – Laser-Controlled Chemical Processing of Surfaces , 1983 , 253
Copyright
Copyright © Materials Research Society 1984

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References

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