Rivet Graphene
详细信息 查看全文
- 作者：Xinlu Li ; Junwei Sha ; Seoung-Ki Lee ; Yilun Li ; Yongsung Ji ; Yujie Zhao ; James M. Tour
- 刊名：ACS Nano
- 出版年：2016
- 出版时间：August 23, 2016
- 年：2016
- 卷：10
- 期：8
- 页码：7307-7313
- 全文大小：481K
- 年卷期：0
- ISSN：1936-086X
文摘
Large-area graphene has emerged as a promising material for use in flexible and transparent electronics due to its flexibility and optical and electronic properties. The anchoring of transition metal nanoparticles on large-area single-layer graphene is still a challenge. Here, we report an in situ preparation of carbon nano-onion-encapsulated Fe nanoparticles on rebar graphene, which we term rivet graphene. The hybrid film, which allows for polymer-free transfer and is strong enough to float on water with no added supports, exhibits high optical transparency, excellent electric conductivity, and good hole/electron mobility under certain tensile/compressive strains. The results of contact resistance and transfer length indicate that the current in the rivet graphene transistor does not just flow at the contact edge. Carbon nano-onions encapsulating Fe nanoparticles on the surface enhance the injection of charge between rivet graphene and the metal electrode. The anchoring of Fe nanoparticles encapsulated by carbon nano-onions on rebar graphene will provide additional avenues for applications of nanocarbon-based films in transparent and flexible electronics.