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Article: A study of the energy loss mechanisms for hot electrons in CdTe and CdS from oscillatory photoconductivity and the magnetophonon effect

TitleA study of the energy loss mechanisms for hot electrons in CdTe and CdS from oscillatory photoconductivity and the magnetophonon effect
Authors
Issue Date1980
Citation
Journal Of Physics C: Solid State Physics, 1980, v. 13 n. 28, p. 5215-5231 How to Cite?
AbstractThe energy loss mechanisms for hot electrons are investigated for n-CdTe and n-CdS by means of extrinsic oscillatory photoconductivity, and by the magneto-impurity and magnetophonon effects. With n-CdTe, samples of varying impurity concentrations are studied and it is found that the oscillatory minima occur due to the emission of LO phonons followed by rapid capture at either n=1 or n=2 states of the shallow donor. The first observation of extrinsic oscillatory photoconductivity in n-CdS is reported, with minima found to occur due to capture of electrons at both the band-edge and an excited state of the shallow donor. Magnetophonon and magneto-impurity measurements were performed for CdTe samples of differing impurity concentration. The differences in behaviour found on changing the impurity content in the two experiments is explained in terms of the different electron heating mechanisms in each case.
Persistent Identifierhttp://hdl.handle.net/10722/175100
ISSN
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorNicholas, RJen_US
dc.contributor.authorCarter, ACen_US
dc.contributor.authorFung, Sen_US
dc.contributor.authorStradling, RAen_US
dc.contributor.authorPortal, JCen_US
dc.contributor.authorHoulbert, Cen_US
dc.date.accessioned2012-11-26T08:49:12Z-
dc.date.available2012-11-26T08:49:12Z-
dc.date.issued1980en_US
dc.identifier.citationJournal Of Physics C: Solid State Physics, 1980, v. 13 n. 28, p. 5215-5231en_US
dc.identifier.issn0022-3719en_US
dc.identifier.urihttp://hdl.handle.net/10722/175100-
dc.description.abstractThe energy loss mechanisms for hot electrons are investigated for n-CdTe and n-CdS by means of extrinsic oscillatory photoconductivity, and by the magneto-impurity and magnetophonon effects. With n-CdTe, samples of varying impurity concentrations are studied and it is found that the oscillatory minima occur due to the emission of LO phonons followed by rapid capture at either n=1 or n=2 states of the shallow donor. The first observation of extrinsic oscillatory photoconductivity in n-CdS is reported, with minima found to occur due to capture of electrons at both the band-edge and an excited state of the shallow donor. Magnetophonon and magneto-impurity measurements were performed for CdTe samples of differing impurity concentration. The differences in behaviour found on changing the impurity content in the two experiments is explained in terms of the different electron heating mechanisms in each case.en_US
dc.languageengen_US
dc.relation.ispartofJournal of Physics C: Solid State Physicsen_US
dc.titleA study of the energy loss mechanisms for hot electrons in CdTe and CdS from oscillatory photoconductivity and the magnetophonon effecten_US
dc.typeArticleen_US
dc.identifier.emailFung, S: sfung@hku.hken_US
dc.identifier.authorityFung, S=rp00695en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1088/0022-3719/13/28/009en_US
dc.identifier.scopuseid_2-s2.0-36149043861en_US
dc.identifier.volume13en_US
dc.identifier.issue28en_US
dc.identifier.spage5215en_US
dc.identifier.epage5231en_US
dc.identifier.isiWOS:A1980KN08200009-
dc.identifier.scopusauthoridNicholas, RJ=7102569757en_US
dc.identifier.scopusauthoridCarter, AC=22996682900en_US
dc.identifier.scopusauthoridFung, S=7201970040en_US
dc.identifier.scopusauthoridStradling, RA=7005186901en_US
dc.identifier.scopusauthoridPortal, JC=22998426400en_US
dc.identifier.scopusauthoridHoulbert, C=22997093400en_US

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