Electronic and Optoelectronic Device Applications of Carbon Based Nanomaterials Integrated with Silicon Technology

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Material Information

Title:
Electronic and Optoelectronic Device Applications of Carbon Based Nanomaterials Integrated with Silicon Technology
Physical Description:
1 online resource (142 p.)
Language:
english
Creator:
An, Yanbin
Publisher:
University of Florida
Place of Publication:
Gainesville, Fla.
Publication Date:

Thesis/Dissertation Information

Degree:
Doctorate ( Ph.D.)
Degree Grantor:
University of Florida
Degree Disciplines:
Electrical and Computer Engineering
Committee Chair:
URAL,ANT
Committee Co-Chair:
BOSMAN,GIJSBERTUS
Committee Members:
GUO,JING
ZIEGLER,KIRK JEREMY

Subjects

Subjects / Keywords:
device -- electronic -- nanotechnology -- optoelectronic -- semiconductor
Electrical and Computer Engineering -- Dissertations, Academic -- UF
Genre:
Electrical and Computer Engineering thesis, Ph.D.
bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract:
The main goal of this dissertation is to investigate the electronic properties of carbon based nanostructured materials as candidates for next generation of transparent and flexible electrodes and their applications for electronic and optoelectronic devices. The first material under study is thin films composed of single-walled carbon nanotubes (CNTs). Schottky junction devices were fabricated. I experimentally characterized Schottky junctions where CNT films act as metal and silicon as semiconductor. I studied the photoresponse and low frequency noise of this metal-semiconductor (MS) junction device. Specially, random telegraph signal (RTS) noise in the forward-bias region of the junction was observed and investigated. The second material under study is thin films and networks composed of multi-layer graphene nanoribbons. I characterized the electronic and magneto-electronic transport of this percolating material. In addition, I also demonstrated the chemical gas sensing application of this film and made a comparison with that of CNT film. The gas sensing measurements were carried out in various conditions and sensing mechanisms of the material was investigated. The third material under study is the CVD-grown monolayer graphene sheets. I developed an optimized fabrication process for the graphene/Si Schottky junction devices, which is compatible with existing silicon technology. I investigated the electronic transport of the graphene/Si junction by various methods and tools, such as low temperature, laser illumination, and computer simulation. I also investigated the electronic noise properties of the graphene/Si Schottky junction in both forward and reverse bias region and gave reasonable explanation for the noise mechanism. In addition to the basic understanding of electronic transport, I also demonstrated the device applications for this new type of junction: metal-semiconductor-metal (MSM) /MS photodetector. By experimental characterization, I extracted important device performance parameters, such as responsivity, bandwidth and detectivity. This work opens up the possible future for integration of the carbon nanostructure materials with existing semiconductor technology and provides important insight for the future development of electronics based on these materials.
General Note:
In the series University of Florida Digital Collections.
General Note:
Includes vita.
Bibliography:
Includes bibliographical references.
Source of Description:
Description based on online resource; title from PDF title page.
Source of Description:
This bibliographic record is available under the Creative Commons CC0 public domain dedication. The University of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Statement of Responsibility:
by Yanbin An.
Thesis:
Thesis (Ph.D.)--University of Florida, 2014.
Local:
Adviser: URAL,ANT.
Local:
Co-adviser: BOSMAN,GIJSBERTUS.
Electronic Access:
RESTRICTED TO UF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE UNTIL 2014-11-30

Record Information

Source Institution:
UFRGP
Rights Management:
Applicable rights reserved.
Classification:
lcc - LD1780 2014
System ID:
UFE0046480:00001