DocumentCode :
919084
Title :
On-Chip-Integrated Nanowire Device Platform With Controllable Nanogap for Manipulation, Capturing, and Electrical Characterization of Nanoparticles
Author :
Uran, Can ; Unal, Emre ; Kizil, Ramazan ; Demir, Hilmi Volkan
Author_Institution :
Dept. of Electr. & Electron. Eng., Bilkent Univ., Ankara, Turkey
Volume :
15
Issue :
5
fYear :
2009
Firstpage :
1413
Lastpage :
1419
Abstract :
We propose and demonstrate nanowire (NW) device platforms on-chip integrated using electric-field-assisted self-assembly. This platform integrates from nanoprobes to microprobes, and conveniently allows for on-chip manipulation, capturing, and electrical characterization of nanoparticles (NPs). Synthesizing segmented (Au-Ag-Au) NWs and aligning them across predefined microelectrode arrays under ac electric field, we controllably form nanogaps between the self-aligned end (Au) segments by selectively removing the middle (Ag) segments. We precisely control and tune the size of this middle section for nanogap formation in the synthesis process. Using electric field across nanogaps between these nanoprobes, we capture NPs to electrically address and probe them at the nanoscale. This approach holds great promise for the construction of single NP devices with electrical nanoprobe contacts.
Keywords :
electrophoresis; nanofabrication; nanowires; self-assembly; controllable nanogap; dielectrophoresis; electric-field-assisted self-assembly; electrical nanoprobe contacts; microelectrode arrays; nanogap formation; on-chip-integrated nanowire device; Dielectrophoresis; electric-field-assisted self-assembly; nanocrystals (NCs); nanogap; nanoparticle (NP); nanowire (NW);
fLanguage :
English
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
1077-260X
Type :
jour
DOI :
10.1109/JSTQE.2009.2020057
Filename :
4982734
Link To Document :
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