Analysis of physical mechanisms for the detection of DNA in carbon nanotube field effect transistors for bio-sensing applications

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.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2012

Author dc:creator

• Zhao, Yang

Contributors dc:contributor

• Liu, Gang Logan

• Carbon nanotubes
• Deoxyribonucleic acid (DNA)
• bio-sensing
• mobility

Statement dc:rights

• Copyright 2011 Yang Zhao

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/29457

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/29457