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Journal of Micro/Nanolithography, MEMS, and MOEMS

Evaluation of surface control and durability of carbon nanotube and indium tin oxide coated polyethylene terephthalate transparent electrodes under different drying conditions
Author(s): Joung-Man Park; Dong-Jun Kwon; Zuo-Jia Wang; Ga-Young Gu; Lawrence K. DeVries
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Paper Abstract

Transparent electrodes using carbon nanotube (CNT) have recently been studied as potential replacements for conventional indium tin oxide (ITO). In this work, CNT and ITO coated polyethylene terephthalate samples were prepared and studied. The degree of cohesion is dependent on the drying conditions. To explore affects of changing surface conditions, three drying temperatures, 20, 80, and 120°C, were used. Electrical resistance measurements were used to evaluate the interfacial durability and electrical properties of prepared transparent electrodes. A field emission scanning electron microscope was used to investigate surface changes and UV-spectroscopy was used to evaluate transparency as functions of the different drying temperatures. The electronic properties for these nanoparticle coated surfaces were evaluated using a cyclic voltametry method. Interfacial durability was evaluated by static contact angle measurement versus elapsed time. The pH values of the coatings were measured in a water solution. The durability of the CNT coated surfaces was found to be better than that of the ITO coated surfaces. The higher drying temperatures were found to produce better coated surfaces because of improved cohesion between the nanoparticles which resulted in improved electrical properties and improved durability.

Paper Details

Date Published: 7 June 2012
PDF: 9 pages
J. Micro/Nanolith. 11(2) 023010 doi: 10.1117/1.JMM.11.2.023010
Published in: Journal of Micro/Nanolithography, MEMS, and MOEMS Volume 11, Issue 2
Show Author Affiliations
Joung-Man Park, Gyeongsang National Univ. (Korea, Republic of)
Dong-Jun Kwon, Gyeongsang National Univ. (Korea, Republic of)
Zuo-Jia Wang, Gyeongsang National Univ. (Korea, Republic of)
Ga-Young Gu, Gyeongsang National Univ. (Korea, Republic of)
Lawrence K. DeVries, The Univ. of Utah (United States)

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