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Temperature dependence of absorption band edge of CdTe nanocrystals in glass

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dc.contributor.authorAllahverdi, C.
dc.contributor.authorYukselici, M. H.
dc.date.accessioned2026-06-27T13:08:08Z
dc.date.issued2008
dc.description.abstractCdTe nanocrystals were grown in borosilicate glass by two-step heat treatment process. Their average radii between 2.98 +/- 0.07 and 6.15 +/- 0.32 nm are determined by using effective mass approximation in the strong confinement limit. The changes in the band gap of CdTe nanocrystals with temperature in the range from 300 to 775 K are found to be between -5.43 x 10(-4) and - 3.78 x 10(-4) eV K-1 by using Varshni's empirical temperature-dependent band gap energy change relation. The difference between temperature dependence of band gap energy for CdTe nanocrystals and that of bulk CdTe crystal is proposed to be due to electron-phonon coupling which is stronger in nanocrystals. We also report a method to estimate glass transition temperature on the basis of analysis of temperature dependence of absorption band edge of CdTe nanocrystals in glass.en
dc.description.sponsorshipYildiz Technical University [23-01-01-01]
dc.description.urihttps://doi.org/10.1088/1367-2630/10/10/103029
dc.identifier.doi10.1088/1367-2630/10/10/103029
dc.identifier.issn1367-2630
dc.identifier.urihttps://hdl.handle.net/20.500.14981/50222
dc.identifier.volume10
dc.identifier.wos000260759400007
dc.language.isoeng
dc.publisherIOP PUBLISHING LTD
dc.relation.ispartofNEW JOURNAL OF PHYSICS
dc.rightsopenAccess
dc.subjectOPTICAL-ENERGY GAP
dc.subjectPhysics
dc.titleTemperature dependence of absorption band edge of CdTe nanocrystals in glass
dc.typeArticle
dspace.entity.typePublication
local.import.sourceWOS

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