Epitaxial Graphene Nanoribbon Array Fabrication Using BCP-Assisted Nanolithography
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- 作者：Guanxiong Liu ; Yanqing Wu ; Yu-Ming Lin ; Damon B. Farmer ; John A. Ott ; John Bruley ; Alfred Grill ; Phaedon Avouris ; Dirk Pfeiffer ; Alexander A. Balandin ; Christos Dimitrakopoulos
- 刊名：ACS Nano
- 出版年：2012
- 出版时间：August 28, 2012
- 年：2012
- 卷：6
- 期：8
- 页码：6786-6792
- 全文大小：841K
- 年卷期：v.6,no.8(August 28, 2012)
- ISSN：1936-086X
文摘
A process for fabricating dense graphene nanoribbon arrays using self-assembled patterns of block copolymers on graphene grown epitaxially on SiC on the wafer scale has been developed. Etching masks comprising long and straight nanoribbon array structures with linewidths as narrow as 10 nm were fabricated, and the patterns were transferred to graphene. Our process combines both top-down and self-assembly steps to fabricate long graphene nanoribbon arrays with low defect counts. These are the narrowest nanoribbon arrays of epitaxial graphene on SiC fabricated to date.