Modification of electrical and surface properties of V2O3 multilayer films on resin-impregnated highly oriented pyrolytic graphite composite substrates by shrinkage stress relaxation with chemical additives
- Authors
- Jung, Hye-Mi; Um, Sukkee
- Issue Date
- Dec-2013
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Vanadium oxide; Multilayer films; Resin; Highly oriented pyrolytic graphite; Composites; Electrical properties; Surface properties; Stress relaxation
- Citation
- THIN SOLID FILMS, v.548, pp.98 - 102
- Indexed
- SCIE
SCOPUS
- Journal Title
- THIN SOLID FILMS
- Volume
- 548
- Start Page
- 98
- End Page
- 102
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/161328
- DOI
- 10.1016/j.tsf.2013.09.005
- ISSN
- 0040-6090
- Abstract
- We investigate the effects of pre-filled acrylic resins in highly oriented pyrolytic graphite (HOPG) substrates on the electrical and interfacial surface characteristics of multilayer films composed of a hexagonal V2O3 crystalline phase created by a sol-gel dip-coating process. The films on the resin-embedded HOPG substrates had mud-like shrinkage crack patterns along the grain boundary, with an exfoliated ratio of 0.79%, a thickness increase of 36.79% and a grain size decrease of 21.22%, compared with those of the non-impregnated sample, without changing the intrinsic electrical properties of HOPG. We attribute these results mainly to the use of resins containing hydroxyl groups, which relieve non-uniform drying stresses of the films.
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