Document Detail


Site-specific stamping of graphene micro-patterns over large areas using flexible stamps.
MedLine Citation:
PMID:  22595887     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Site-specific stamping has the potential of becoming a low-cost, high-throughput method for depositing specific-shaped graphene micro-patterns over large areas on a wide variety of substrates. The use of an approach involving flexible stamps presented here represents an important advance towards reaching that potential. This approach entails lithographic creation (dry etching) of high-quality micro-pillar arrays of highly oriented pyrolytic graphite (HOPG) over large areas. This is followed by embedding the micro-pillar arrays in polydimethylsiloxane (PDMS), and detaching them from the HOPG base. This results in flexible stamps containing embedded HOPG micro-pillar arrays with freshly cleaved stamping surfaces. The flexible HOPG/PDMS stamps are then brought into contact with substrate surfaces to site-specifically stamp graphene or few-layer graphene (FLG) arrays over large areas. The freshly cleaved nature of the micro-pillar surfaces in the flexible stamps, the low elastic modulus of the flexible stamps and the elimination of sidewall deposits on the micro-pillars allow for more uniform stamping, relative to the use of stiff HOPG stamps from earlier studies. This approach has the potential to expand the substrate choice for graphene or FLG stamping to include curved and/or flexible substrates that could have an impact on the burgeoning field of flexible/stretchable electronics.
Authors:
Chun-Hu Chen; Kongara M Reddy; Nitin P Padture
Related Documents :
1321147 - Iodination of tyrosine 59 of ubiquitin selectively blocks ubiquitin's acceptor activity...
16531227 - Structure of a transient intermediate for gtp hydrolysis by ras.
12903117 - Substrate recognition by the human mth1 protein.
15567417 - Structure of a complex between nedd8 and the ulp/senp protease family member den1.
19019827 - Rationally designed integrin beta3 mutants stabilized in the high affinity conformation.
18835897 - Bending flexibility of actin filaments during motor-induced sliding.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-17
Journal Detail:
Title:  Nanotechnology     Volume:  23     ISSN:  1361-6528     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  235603     Citation Subset:  -    
Affiliation:
Department of Materials Science and Engineering, Ohio State University, Columbus, OH 43210, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Elevation of transcription factor Islet-1 levels in vivo increases ?-cell function but not ?-cell ma...
Next Document:  Cancer chromosomal instability: therapeutic and diagnostic challenges.