Document Detail

Rapid prototyping of nanotube-based devices using topology-optimized microgrippers.
MedLine Citation:
PMID:  21730675     Owner:  NLM     Status:  In-Data-Review    
Nanorobotic handling of carbon nanotubes (CNTs) using microgrippers is one of the most promising approaches for the rapid characterization of the CNTs and also for the assembly of prototypic nanotube-based devices. In this paper, we present pick-and-place nanomanipulation of multi-walled CNTs in a rapid and a reproducible manner. We placed CNTs on copper TEM grids for structural analysis and on AFM probes for the assembly of AFM super-tips. We used electrothermally actuated polysilicon microgrippers designed using topology optimization in the experiments. The microgrippers are able to open as well as close. Topology optimization leads to a 10-100 times improvement of the gripping force compared to conventional designs of similar size. Furthermore, we improved our nanorobotic system to offer more degrees of freedom. TEM investigation of the CNTs shows that the multi-walled tubes are coated with an amorphous carbon layer, which is locally removed at the contact points with the microgripper. The assembled AFM super-tips are used for AFM measurements of microstructures with high aspect ratios.
O Sardan; V Eichhorn; D H Petersen; S Fatikow; O Sigmund; P Bøggild
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Publication Detail:
Type:  Journal Article     Date:  2008-11-18
Journal Detail:
Title:  Nanotechnology     Volume:  19     ISSN:  0957-4484     ISO Abbreviation:  Nanotechnology     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2011-07-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  England    
Other Details:
Languages:  eng     Pagination:  495503     Citation Subset:  -    
Nanotech-Department of Micro and Nanotechnology, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark.
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