Spray doping method to create a low-profile high-density carbon nanotube thermoelectric generator. (January 2016)

• Record Type: Journal Article
• Authors: Montgomery, David S.; Hewitt, Corey A.; Barbalace, Ryan; Jones, Travis; Carroll, David L.
• Is Part Of: Carbon. Volume 96(2016)
• Page Start: 778
• Page End: 781
• Publication Date: 2016-01
• Subjects: Carbon nanotubes -- Thermoelectric generators -- Spray doping; Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2015.09.029
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: A new spray doping method is presented that allows for easily tunable thermoelectric properties of thin film carbon nanotube (CNT) polymer composites. An airbrush introduces small molecule Polyethyleneimine into existing p-type CNT films converting it to an n-type composite. This technique allows for the conversion of a single p-type film into a multi-section device of alternating p- and n-type segments. A thermoelectric generator (TEG) design is presented with the effort to address current design issues facing thin film thermoelectric devices as a commercially viable TEG. The Seebeck coefficient and electrical conductivity were tested under different dopant concentrations and compared with traditional solution based methods.