Accession Number : ADA183701

Title :   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.

Descriptive Note : Technical rept.,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF CHEMISTRY

Personal Author(s) : Jones,E T ; Chyan,Oliver M ; Wrighton,Mark S

PDF Url : ADA183701

Report Date : 05 Aug 1987

Pagination or Media Count : 15

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.

Descriptors :   *ELECTRODES, *FABRICATION, *TRANSISTORS, MICROELECTRONICS, ANILINES, DEPOSITION, DRAINAGE, ELECTRODES, ENERGY, FABRICATION, OXIDATION, OXIDATION REDUCTION REACTIONS, POLYMERS, SEPARATION, SHADOWS, SOURCES, SWITCHING

Subject Categories : Electrical and Electronic Equipment
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE