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Title:Analysis of physical mechanisms for the detection of DNA in carbon nanotube field effect transistors for bio-sensing applications
Author(s):Zhao, Yang
Advisor(s):Liu, Gang Logan
Department / Program:Electrical & Computer Eng
Discipline:Electrical & Computer Engr
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:M.S.
Genre:Thesis
Subject(s):Carbon nanotubes
Deoxyribonucleic acid (DNA)
bio-sensing
mobility
Abstract:This thesis discusses the use of carbon nanotube field effect transistors as sensors for DNA. It proposes a band-gap modulation as the underlying physical mechanism by which detection occurs. Previous works have established that either Schottky--barrier modulation or electro--static gating are the most significant mechanisms, depending on the particular device. By analyzing field effect mobilities it can be seen that the band-gap modulation effect shows up in every device and can be a reliable means by which detection of hybridized DNA molecules can occur.
Issue Date:2012-02-01
Genre:thesis
URI:http://hdl.handle.net/2142/29457
Rights Information:Copyright 2011 Yang Zhao
Date Available in IDEALS:2012-02-01
2014-02-01
Date Deposited:2011-12


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