Field Emission from Conducting Polymer/Single-Walled Carbon Nanotube Composite Prepared by AC Coupled Electrophoresis

Autor:	Yoshiyuki Kato, Yuhei Sano, Keiichi Miyairi, Eiji Itoh
Rok vydání:	2008
Předmět:	Conductive polymer Materials science Physics and Astronomy (miscellaneous) Composite number General Engineering General Physics and Astronomy Nanotechnology Carbon nanotube law.invention Indium tin oxide Electrophoresis Field electron emission Chemical engineering law Electrode Polyimide
Zdroj:	Japanese Journal of Applied Physics. 47:2016-2020
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.47.2016
Popis:	The field emission properties of a carboxylic-acid-terminated single-walled carbon nanotube (SWNT–COOH)/conducting polymer [poly(3-octylthiophene), P3OT] composite film prepared by ac-coupled electrophoresis have been investigated. It was found that positively charged SWNT–COOH/P3OT colloids were selectively deposited onto an indium tin oxide (ITO) electrode, and the spatial resolution of about 1 µm was successfully obtained when ITO was coated selectively with partially fluorinated polyimide (FPI). The field emission properties of the composites were improved markedly for an amplitude of ac voltage and a frequency of higher than 100 V and 10 kHz, respectively. The emission properties were also improved for the film deposited on patterned electrodes probably owing to the vertical alignment of CNTs on the etched side of the FPI film, which contributes to a low turn-on field of 1.2 V/µm and a high field enhancement factor of 4300.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::949a5cb6cfcb9a52eb9255fc7b6859ea https://doi.org/10.1143/jjap.47.2016 Zobrazit plný text záznamu