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Permanent link (DOI): https://doi.org/10.7939/R32K70

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Development of photonic crystal display devices Open Access

Descriptions

Other title
Subject/Keyword
glancing angle deposition
photonic crystals
electrophoresis
thin films
nanoimprint lithography
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Krabbe, Joshua Dirk
Supervisor and department
Brett, Michael (Electrical and Computer Engineering)
Examining committee member and department
DeCorby, Ray (Electrical and Computer Engineering)
Ivey, Douglas (Chemical and Materials Engineering)
Department
Department of Electrical and Computer Engineering
Specialization

Date accepted
2011-03-04T21:19:31Z
Graduation date
2011-06
Degree
Master of Science
Degree level
Master's
Abstract
This thesis investigates technologies directed towards developing photonic crystal display devices. A switching technology based on dye electrophoretic motion within a 1D porous photonic crystal was developed. Dissociated absorbing dye species were moved through the assembled device and reflectance was controllably altered by up to 0.4. Refinement of fabrication techniques yielded a slow switching device, whose time-resolved reflectance data was analyzed. A wavelength dependence of the device switching speed was observed. This phenomenon was described by modelling where bandgap effects match observation. These devices may be improved by employing a 3D photonic crystal. We developed a nanoimprint lithography technique for seeding films deposited by GLAD for the fabrication of 3D square spiral photonic crystals. Parameters for patterning a precisely defined mould pattern using electron beam lithography were established. A large area diamond:1 square spiral photonic crystal was fabricated on the nanoimprinted seeds, and it exhibited a visible wavelength bandgap.
Language
English
DOI
doi:10.7939/R32K70
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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