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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemical engineering
Alignment controlled growth of single-walled carbon nanotubes on quartz substrates
Nano Letters, Volume 9, No. 12, Year 2009
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Description
Single-walled carbon nanotubes (SWNTs) possess extraordinary electrical properties, with many possible applications in electronics. Dense, horizonally aligned arrays of linearly configured SWNTs represent perhaps the most attractive and scalable way to implement this class of nanomaterial in practical systems. Recent work shows that templated growth of tubes on certain crystalline substrates yields arrays with the necessary levels of perfection, as demonstrated by the formation of devices and full systems on quartz. This paper examines advanced implementations of this process on crystalline quartz substrates with different orientations, to yield strategies for forming diverse, but welldefined horizontal configurations of SWNTs. Combined experimental and theoretical studies indicate that angle-dependent van der Waals interactions can account for nearly all aspects of alignment on quartz with X, Y, Z, and ST cuts, as well as quartz with disordered surface layers. These findings provide important insights into methods for guided growth of SWNTs, and possibly other classes of nanomaterials, for applications in electronics, sensing, photodetection, light emission, and other areas. © 2009 American Chemical Society.
Authors & Co-Authors
Xiao, Jianliang
United States, Evanston
Northwestern University
Dunham, Simon N.
United States, Urbana
University of Illinois Urbana-champaign
Liu, Ping P.
Singapore, Singapore City
A-star, Institute of High Performance Computing
Zhang, Yongwei
Singapore, Singapore City
A-star, Institute of High Performance Computing
Singapore, Singapore City
National University of Singapore
Kocabaş, Coşkun
United States, Urbana
University of Illinois Urbana-champaign
Moh, Lionel C.H.
United States, Urbana
University of Illinois Urbana-champaign
Huang, Younggang Young
United States, Evanston
Northwestern University
Hwang, Kehchih
China, Beijing
Tsinghua University
Lu, Chun
Saudi Arabia, Thuwal
King Abdullah University of Science and Technology
Huang, Wei H.
China, Nanjing
Nanjing University of Post and Telecommunications
Rogers, John A.
United States, Urbana
University of Illinois Urbana-champaign
Statistics
Citations: 131
Authors: 11
Affiliations: 7
Identifiers
Doi:
10.1021/nl9025488
ISSN:
15306984
Research Areas
Environmental