Quantum confinement induced photoluminescence in porous silicon

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DOIResolve DOI: http://doi.org/10.1016/0038-1098(95)00186-7
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TypeArticle
Journal titleSolid State Communications
Volume94
Issue11
Pages905909; # of pages: 5
Subjectnanostructures; semiconductor; optical properties; light absorption; luminescence
AbstractAn investigation of the red photoluminescence (PL) in uniform layers of porous silicon has revealed an inverse relationship between the PL peak energy and the nanoparticle diameter that is in accord with a quantum confinement mechanism. The PL energy lies below that of the optical absorption gap in such samples and the theoretical predictions for quantum dots. It appears that the light emission in porous Si is multiphoton assisted for even quite small nanoparticle sizes.
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LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedNo
NPARC number12330212
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Record identifier9d7b482b-7e1a-4062-8e43-92710e7b550f
Record created2009-09-10
Record modified2016-05-09
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