Use of molecular electrostatic potential to process electronic signals
US6259277A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1999 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Jul 26, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/94
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
The present invention is a design paradigm for molecular scale electronic systems wherein electronic information is transmitted and processed, and electronic logic is obtained by changing the electrostatic potential of a molecule. The signal may be restored using an external potential through the underlying substrate. Several convergent synthetic routes are shown to conjugated molecules with various potential electronic device applications including a two-terminal molecular wire with a transport barrier, a molecular wire with two transport barriers, three-terminal junctions, three-terminal structures with switch-like possibilities, and four-terminal systems that could serve as logical gates without the use of multiple transistors. Ab initio computational methods are used to show that (i) molecules can be considered active electronic devices able to transfer the information from one molecule to another, (ii) the electrostatic potential can also be used as a tool to perform logical operations, and (iii) that the molecules synthesized here could perform the functions for which they were designed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.