Publications
Detailed Information
Fabrication of CVD-grown graphene/Ag nanocomposites and its flexible sensor application : 그래핀/은 나노복합체의 제조와 플렉서블 센서의 응용
Cited 0 time in
Web of Science
Cited 0 time in Scopus
- Authors
- Advisor
- 장정식
- Major
- 공과대학 화학생물공학부
- Issue Date
- 2013-02
- Publisher
- 서울대학교 대학원
- Keywords
- Graphene nanocomposites ; CVD-grown graphene ; Oxygen plasma ; Flexible sensor
- Description
- 학위논문 (석사)-- 서울대학교 대학원 : 화학생물공학부, 2013. 2. 장정식.
- Abstract
- The fabrication of designable CVD-grown few-layer graphene is a promising research area for enhanced device performance. In this study, the few-layer graphene was grown on Cu foil by chemical vapor deposition (CVD) method and functionalized with oxygen plasma treatment under controlled conditions, such as exposure time, input power and distance between the graphene and the plasma electrode. Oxygen plasma treated few-layer graphene (OPFG) results in high surface energy, leading to effectively attracting Ag+ ions in electrostatic interactions. Interestingly, the distribution of the metal nanoparticles increased with increasing the exposure time and their diameters were controlled by UV irradiation. Uniform Ag nanoparticles (Ag NPs) with ca. 9 nm diameter were successfully decorated on the graphene surface. Moreover, the Ag NPs/OPFG nanocomposite (AgNP–G) film has excellent mechanical bendability and durability in a flexible system. Furthermore, flexible hydrogen sensor of AgNP-G showed highly sensitive and reversible at room temperature (Minimum detection level, ca. 40 ppm)
- Language
- English
- Files in This Item:
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.