A design concept for nanowire-based sensors and arrays is described. The fabrication technique involves electrodeposition to directly grow nanowires between patterned thin film contact electrodes. To prove our concept, we have electrodeposited 1-mm diameter Pd single wires and small arrays. To demonstrate nanowire sensors, we have electrochemically grown metal (Pd, Au, Pt), metal oxide (Sb2O3), and conducting polymer (polyaniline) bundled nanowires. Using Pt bundled nanowires surface modified with glucose oxidase, we have demonstrated glucose detection as a demonstration of a biomolecular sensor.
@article{arxiv.cond-mat/0310075,
title = {Nanowire Growth for Sensor Arrays},
author = {Minhee Yun and Nosang V. Myung and Richard P. Vasquez and Jianjun Wang and Harold Monbouquette},
journal= {arXiv preprint arXiv:cond-mat/0310075},
year = {2009}
}
Comments
To appear in Nanofabrication Technologies, Ed. E. A. Dobisz, SPIE Proceedings 5220, pp. xxx (2003, in press)