Single molecule realization of the switch and doide combination

Details Single molecule realization of the switch and doide combination Single molecule realization of the switch and doide combination

2005-02-22

2005-02-22

Gupta, Yogendra N. (Department: 1751)

Compositions

Electrically conductive or emissive compositions

C257S200000, C257S040000, C438S006000, C438S099000, C546S104000

Reexamination Certificate

active

06858162

ABSTRACT:
Diodes and switches are combined in a single molecular species. Thus, the single molecular species is capable of performing more than one function. A single molecular species having both diode and switch functionalities is provided. The molecular species is represented by the formula:where A and B are non-identical conducting moieties, I is an insulating bridge between A and B, CL and CR are connectors to left and right electrodes, respectively, and “+” and “−” represent a rotatable dipolar moiety. Further, a diode-switch combination is provided, comprising the single molecular species. The teachings herein provide a set of principles to combine diodes and switches within one molecular species. Further, with the present teachings, only a single molecular species is needed for the fabrication of viable moletronic devices such as crossbar memory arrays. Consequently, device fabrication is easier and cheaper, and the device itself less faulty and more reliable.

REFERENCES:
patent: 5589692 (1996-12-01), Reed
patent: 6339227 (2002-01-01), Ellenbogen
patent: 6512119 (2003-01-01), Bratkovski et al.
patent: 6663797 (2003-12-01), Bratovski et al.
U.S. Appl. No. 09/759,438,“Bistable Molecular Mechanical Device with an Appended Rotor Activated by an Electric Field for Electronis Swiching, Gating and Memory Applications,” Bratkovski, et al., filed Jan. 12, 2001.

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