Tunning electrical characteristics for networked carbon nanotube field-effect transistors using thiolated molecules

Wei Lee Chun, Xiaochen Dong, Keke Zhang, H. Tangtang, S. G. Mhaisalkar, Lain-Jong Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We examine the effects of adsorption of four thiolated molecules (HS-C 10H21, HS-C11H22OH, HS-C 10H20COOH, and HS-C2H4C 4F9) on the electrical characteristics of single-walled carbon nanotube network FETs (SNFETs). Measuring the work function of the electrodes before and after molecule adsorption and performing Schottky barrier energy extraction for SNFETs provide direct evidence that the device characteristics of SNFETs after SAM adsorption are altered primarily due to the change in energy-level alignment between the Au and SWNTs. We also demonstrate that the electrical characteristics of SNFETs can be modified by introducing thiolated heme on Au electrodes and by using the location-selective photo-irradiation method, which provides an effective methodology for the fine-tuning and performance optimization of these devices in a controllable way.

Original languageEnglish (US)
Title of host publication2008 2nd IEEE International Nanoelectronics Conference, INEC 2008
Pages542-544
Number of pages3
DOIs
StatePublished - Oct 1 2008
Event2008 2nd IEEE International Nanoelectronics Conference, INEC 2008 - Shanghai, China
Duration: Mar 24 2008Mar 27 2008

Publication series

Name2008 2nd IEEE International Nanoelectronics Conference, INEC 2008

Other

Other2008 2nd IEEE International Nanoelectronics Conference, INEC 2008
CountryChina
CityShanghai
Period03/24/0803/27/08

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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