The Use of Polyethyleneimine to Control the Growth-Front Morphology of Electrochemically Deposited Gold Nanowires for Engineered Nanogap Electrodes

Author

• Manuel DaSilva, Purdue UniversityFollow
• Matthew Schneider, Purdue University - Main Campus
• Daniel Wood, Purdue University - Main Campus
• Bong-Joong Kim, Purdue University - Main Campus
• E A. Stach, Birck Nanotechnology Center and School of Materials Engineering, Purdue UniversityFollow
• Tim Sands, Purdue UniversityFollow

Abstract

Polyethyleneimine (PEI) is utilized in an electrolytic bath for the planarization of electrodeposited nanowire growth fronts in porous anodic alumina templates. The addition of highly branched, low-molecular-weight PEI to the plating bath also provides improved uniformity in the distribution of nanowire growth rates from pore to pore and allows for a more precise control over the electrochemical growth process.

Keywords

electrodeposition • molecular electronics • nanogap electrodes • nanowires • porous anodic alumina

Date of this Version

11-2009

Recommended Citation

DaSilva, Manuel; Schneider, Matthew; Wood, Daniel; Kim, Bong-Joong; Stach, E A.; and Sands, Tim, "The Use of Polyethyleneimine to Control the Growth-Front Morphology of Electrochemically Deposited Gold Nanowires for Engineered Nanogap Electrodes" (2009). Birck and NCN Publications. Paper 468.
https://docs.lib.purdue.edu/nanopub/468