한국표면공학회:학술대회논문집 (Proceedings of the Korean Institute of Surface Engineering Conference)
- 한국표면공학회 2016년도 추계학술대회 논문집
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- Pages.135-135
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- 2016
초음파 스프레이 코팅과 레이저 소결 공정에 의해 유연 기판 표면에 형성된 탄소나노튜브-구리 하이브리드 박막
Carbon Nanotube-Copper Hybrid Thin Film on Flexible Substrate fabricated by Ultrasonic Spray Coating and Laser Sintering Process
- 발행 : 2016.11.17
초록
Recently flexible electrode materials have attracted attention in various electrical devices. In general, copper(Cu) is widely used electrical conductive material. However, Cu film showed drastically reduction of electrical conductivities under an applied tensile strain of 10%. These poor mechanical characteristics of Cu have difficulty applying in flexible electronic applications. In this study, mechanical flexibilities of Cu thin film were improved by hybridization with carbon nanotubes(CNTs) and laser sintering. First, thin carbon nanotube films were fabricated on a flexible polyethylene terephthalate(PET) substrate by using ultrasonic spray coating of CNT dispersed solution. After then, physically connected CNT-Cu NPs films were formed by utilizing ultrasonic spray coating of Cu nanoparticles dispersed solution on prepared CNT thin films. Finally, CNT-Cu thin films were firmly connected by laser sintering. Therefore, electrical stabilities under mechanical stress of CNT-Cu hybrid thin films were compared with Cu thin films fabricated under same conditions to confirm improvement of mechanical flexibilities by hybridization of CNT and Cu NPs.
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