Molecular electronic device including organic dielectric thin film and method of fabricating the same

Abstract

Provided are a molecular electronic device and a method of fabricating the molecular electronic device. The molecular electronic device includes a substrate, an organic dielectric thin film formed over the substrate, a molecular active layer formed on the organic dielectric thin film and having a charge trap site, and an electrode formed on the molecular active layer. The organic dielectric thin film may be immobilized on the electrode or a Si layer by a self-assembled method. The organic dielectric thin film may include first and second molecular layers bound together through hydrogen bonds. An organic compound may be self-assembled over the substrate to form the organic dielectric thin film. The organic compound may include an M′-R-T structure, where M′, R and T represent a thiol or silane derivative, a saturated or unsaturated C1 to C20 hydrocarbon group which is substituted or unsubstituted with fluorine (F), and an amino(—NH2) or carboxyl (—COOH) group, respectively.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATION[0001]This application claims the benefits of Korean Patent Application No. 10-2006-0085375, filed on Sep. 5, 2006, and Korean Patent Application No. 10-2006-0103137, filed on Oct. 23, 2006, in the Korean Intellectual Property Office, the disclosures of which are incorporated herein in their entirety by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a molecular electronic device, and more particularly, to a molecular electronic device including a molecular active layer with a charge trap site and a method of fabricating the device.[0004]2. Description of the Related Art[0005]Much research has been dedicated to developing an organic semiconductor device using an organic material having π-electron conjugated bonds. Most of the attempts have been focused on electron transport characteristics of an organic layer interposed between two metal electrodes. Researchers have also attempted...

AI Technical Summary

Benefits of technology

[0007]The present invention provides a molecular electronic device with a desired electronic characteristic by preventing short circuits, usually caused by penetration of an electrode material into a molecular active layer, when implementing an ultra-highly integrated nanoelectronic device including a miniaturized structure of several to several tens of nanometers that utilizes an electronic characteristic of the molecular active layer.

[0008]The present invention also provides a method of fabricating a molecular electronic device capable of improving yield and reliability of ultra-highly integrated nanoelectronic devices including a miniaturized structure of several to several tens of nanometers by preventing short circuits, usually caused by penetration of an electrode material into a molecular active layer when forming an electrode over the molecular active layer.

[0033]According to various exemplary embodiments of the present invention, when an electrode material is deposited over the molecular layer, even if the electrode material penetrates into the molecular active layer, the penetrated the electrode material cannot reach a bottom conductive layer since a distance from the molecular active layer to the bottom conductive layer increases due to the organic dielectric thin film formed between the molecular active layer and the bottom conductive layer. Therefore, the molecular electrode device according to the embodiments of the present invention can prevent an occurrence of short-circuit usually caused by the penetration of the electrode material into the molecular active layer. Accordingly, it is possible to improve yield and reliability of ultra-highly integrated nanoelectronic devices including a miniaturized structure with the size of several nanometers to several tens of nanometers.

Problems solved by technology

As a result, short circuits may occur in the molecular electronic device, and thus, the commercialization of such a molecular electronic device may be difficult.

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