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University of Illinois at Urbana-Champaign
A Time-Resolved Fluorescence Study of Silicon Nanoparticles: Testing the Dimer Stretching Model
Abstract
dc:descriptionThe 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.
Degree
thesis:*- Name thesis:degree_name
- Ph.D.
- Level thesis:degree_level
- Dissertation
- Discipline thesis:degree_discipline
- Physics
- Grantor
- University of Illinois at Urbana-Champaign
- Year dc:date
- 2015
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Smith, Adam Douglas
- Contributors dc:contributor
-
- Ha, Taekjip
Subjects
dc:subject × 1Rights
- Language dc:language
- eng
Identifiers
dc:identifier.*- Identifier
- (MiAaPQ)AAI3314897
- OAI identifier oai:identifier
- oai:www.ideals.illinois.edu:2142/80572