Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 17, Issue 8, Pages 5481-5484Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2017.14136
Keywords
Poly(vinyl alcohol); Iodination; Stabilization; Pyrolysis; Carbon Film
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Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [2015-M2A2A6A01043822, 2015R1D1A3A01016010]
- Chungnam National University
- National Research Foundation of Korea [2015R1D1A3A01016010] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this study, conductive carbon thin films were prepared from poly(vinyl alcohol) (PVA) thin films through iodine pretreatment and pyrolysis. PVA thin films spin-coated on a substrate were iodinated with an aqueous NH4I/I-2 solution. The iodinated PVA thin films were stabilized in air and then pyrolyzed under inert atmosphere to form carbon thin films. As a result, iodine pretreatment was found to enhance the thermal stability of the PVA. Carbon films with imperfect graphitic structures were formed by pyrolysis of the stabilized PVA films containing polyene structures. The carbon films showed a high electrical conductivity of 2.00x10(2) S/cm and a greatly low surface roughness of below 1.0 nm.
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