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Title:A Time-Resolved Fluorescence Study of Silicon Nanoparticles: Testing the Dimer Stretching Model
Author(s):Smith, Adam Douglas
Doctoral Committee Chair(s):Ha, Taekjip
Department / Program:Physics
Discipline:Physics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Physics, Condensed Matter
Abstract:The role of surface dimers in the fluorescence mechanism is explored using the theoretical framework of Allan, Delerue, and Lanoo [1]. Their single dimer computations are extended to a fully reconstructed structure using time dependent density functional theory. Despite the inclusion of a fully reconstructed structure and improved computational techniques, their simple stretching model produces an energy barrier inconsistent with the observed temperature-lifetime trends. The discrepancy is attributed to the neglect of more complicated dimer motions, e.g. hydrogen bond wagging.
Issue Date:2008
Type:Text
Language:English
Description:106 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008.
URI:http://hdl.handle.net/2142/80572
Other Identifier(s):(MiAaPQ)AAI3314897
Date Available in IDEALS:2015-09-25
Date Deposited:2008


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