Functional molecular element and functional molecular device

Details Functional molecular element and functional molecular device Functional molecular element and functional molecular device

2003-12-25

2008-08-05

Elms, Richard T. (Department: 2824)

Active solid-state devices (e.g., transistors, solid-state diode

Organic semiconductor material

C257SE51023, C257SE51024, C365S151000, C977S731000, C977S791000, C977S940000, C977S943000

Reexamination Certificate

active

07408184

ABSTRACT:
A functional molecular element whose functions can be controlled by an electric field based on a new principle. A Lewis base molecule (14) with positive permittivity anisotropy or a dipole moment in the major axis direction of the molecule is disposed, via a metal ion (3) that can act as a Lewis acid, in a pendant-like form on a key molecule (2) in the form of a line or film that has a conjugated system and exhibits conductivity, thereby forming a functional molecular element1that can realize a function where the conformation changes due to the application of an electric field. The conductive key molecule (2) and the Lewis base molecule (14) form a complex with the metal ion (3). When an electric field is applied in a direction perpendicular to the plane of the paper in FIG.1(b), for example, the Lewis base molecule (14) performs a 90° “neck twisting” movement with the up-down direction in the drawing as the axis. Also, when an electric field is applied in the up-down direction in the drawing as shown in FIG.1(c), the Lewis base molecule (14) performs a “see-saw” movement with the direction perpendicular to the plane of the paper as the axis, thereby switching the conductivity of the conductive key molecule (2).

REFERENCES:
patent: 4109241 (1978-08-01), Shanks
patent: 5608556 (1997-03-01), Koma
patent: 6128214 (2000-10-01), Kuekes et al.
patent: 6256767 (2001-07-01), Kuekes et al.
patent: 6674932 (2004-01-01), Zhang et al.
patent: 2002/0040805 (2002-04-01), Swager
patent: 2002/0114557 (2002-08-01), Zhang et al.
patent: 2003-209305 (2003-07-01), None
patent: 2003-418815 (2008-01-01), None
Chen et al., “Large On-Off Ratios and Negative Differential Resistance in a Molecular Electronic Device,” Science, 1999, vol. 286, 1550-1552.
Feringa, Ben L., “Molecular Switches,” Wiley-VCH, Weinheim, 2001.
Reed et al., “Conductance of a Molecular Junction,” Science, 1997, vol. 278, 252-254.
Ashton et al., “A Three-Pole Supramolecular Switch,” J. Am. Chem. Soc., vol. 121, pp. 3951-3957, 1999.

Affiliated with

Also associated with

Rating

Functional molecular element and functional molecular device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Functional molecular element and functional molecular device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Functional molecular element and functional molecular device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4000157