Multilayer graphene and carbon nanoribbon-based photodetectors: fabrication and photoresponse measurement

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Title Multilayer graphene and carbon nanoribbon-based photodetectors: fabrication and photoresponse measurement
Publication Type thesis
School or College College of Engineering
Department Materials Science & Engineering
Author Sun, Rujie
Date 2013-12
Description The focus of this dissertation is to study the multilayer graphene and carbon nanoribbon-based photodetectors through the fabrication of features like films, islands, mesas, as well as nanoribbons. The corresponding photoresponse was next explored with the realization of photodetecting devices. Graphene-based photodetectors have been fabricated and studied for a long time, and the mechanism of the photoinduced carriers in such photodetectors is still not clear. In addition, the photoresponsivity of graphene photodetectors is still improvable. Based on the research of the photoresponse experiment of multilayer graphene and carbon nanoribbon-based photodetectors, the mechanism for the photodetecting is further discussed and the photoresponsivity is highly improved by different methodologies. Specifically, this dissertation includes the following five chapters of topics: (1) introductions; (2) graphite / multilayer graphene photodetectors; (3) tunable photoresponse of epitaxial graphene on SiC; (4) photoresponse in carbon nanoribbon-based devices; and (5) conclusions. Overall, my dissertation achieves the goal of fundamental discussion of photodetecting in multilayer graphene and carbon nanoribbon-based devices and realizes the improved and tunable photoresponse in the meantime. I hope that this dissertation will help move forward graphene/carbon materialbased research, which is not only limited to the device fabrication and nanopatterning technology but also to achieve a better output of photodetectors.
Type Text
Publisher University of Utah
Subject Epitaxial graphene; Graphene; Multilayer graphene; Nanopatterning; Photodetector; Photoresponse
Dissertation Institution University of Utah
Dissertation Name Doctor of Philosophy
Language eng
Rights Management Copyright © Rujie Sun 2013
Format application/pdf
Format Medium application/pdf
Format Extent 2,009,210 bytes
Identifier etd3/id/2675
ARK ark:/87278/s6545wsd
Setname ir_etd
ID 196250
Reference URL https://collections.lib.utah.edu/ark:/87278/s6545wsd
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