Preparation and Characterization of Molecule-Based Transistors with a 50 Nanometer Source-Drain Separation Using Shadow Deposition Techniques: Towards Faster, More Sensitive Molecule-Based Devices.
Abstract
Preparation of Au microelectrode arrays having spacings of 50-100 nm and available electrode areas of <10 to the -7th power sq cm is described. The dimensions are qualitatively smaller than previously reported and lead directly to faster switching and smaller switching energy for molecule-based transistors. Such microelectrodes can be functionalized with redox active polymers by oxidation of aniline to give polyaniline or by electrochemically assisted deposition of N,N'-bis(p-trimethoxysilylbenzyl)-4,4'-bipyridinium promoting Si-OMe hydrolysis to give the redox polymer (BPQ2+/+)n. The fabrication procedure begins with a microelectrode array consisting of eight, individually addressable AU microelectrodes each approx. 50 micron long x approx 2.5 micron wide x approx. 0.1 micron thick with a spacing of approx. 1.5 micron between the microelectrodes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 05, 1987
- Accession Number
- ADA183701
Entities
People
- E. T. Jones
- Mark S. Wrighton
- Oliver M. Chyan
Organizations
- Massachusetts Institute of Technology