Preparation of Water-Based Carbon Nanotube Inks and Application in the Inkjet Printing of Carbon Nanotube Gas Sensors

Author:

Lin Ziyin1,Le Taoran2,Song Xiaojuan3,Yao Yagang,Li Zhuo,Moon Kyoung-sik1,Tentzeris Manos M.2,Wong Ching-ping4

Affiliation:

1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0245

2. School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0245

3. Georgia Tech Research Institute, Georgia Institute of Technology, Atlanta, GA 30332-0245

4. School of Materials Science & Engineering, Georgia Institute of Technology; Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong, China e-mail:

Abstract

Water-based carbon nanotube (CNT) is highly desirable for inkjet printing devices due to its environmentally benign and low-cost features. To improve the dispersion of CNT in water, oxygen-containing functional groups are introduced into the surface of CNT via an acid oxidation process. The CNT-based gas sensor is fabricated by inkjet printing, which shows a high sensitivity toward NO2. The application of inkjet-printed CNT in a printed RF antenna for wireless sensing is also discussed.

Publisher

ASME International

Subject

Electrical and Electronic Engineering,Computer Science Applications,Mechanics of Materials,Electronic, Optical and Magnetic Materials

Reference14 articles.

1. Carbon Nanotube Gas and Vapor Sensors;Angew. Chem., Int. Ed.,2008

2. Toward Large Arrays of Multiplex Functionalized Carbon Nanotube Sensors for Highly Sensitive and Selective Molecular Detection;Nano Lett.,2003

3. Inkjet Printing for Materials and Devices;Chem. Mater.,2001

4. Fabrication of Water-Dispersible Polyaniline-Poly(4-Styrenesulfonate) Nanoparticles for Inkjet-Printed Chemical-Sensor Applications;Adv. Mater.,2007

5. A Novel ‘Green’ Fully-Integrated Ultrasensitive RFID-Enabled Gas Sensor Utilizing Inkjet-Printed Antennas and Carbon Nanotubes;APSURSI'09,2009

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