Electric bi-stable device based on composite film of semi-conductor nano crystalline and polymer

Abstract

The invention discloses an electric bistable device based on a composite film of a semiconductor nano-crystalline and a polymer, which relates to a photo-electronic device which has two different conduction states under the same voltage. The device comprises a conducting substrate (1) which is an ITO conducting glass and is sequentially manufactured with a buffer layer (2), a functional active layer (3) and an aluminum electrode (4). The material of the buffer layer (2) is sulfonated polystyrene doped poly-3,4-vinyl dioxy thiophene; and the material of the functional active layer (3) is the mixture of lauryl mercaptan coated cuprous sulfide nano-crystalline and conjugated polymer poly(2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene ethylene), and the ratio of the two components is between 1:1 and 3:1. The electric bistable device based on the composite film of the semiconductor nano-crystalline and the polymer has the characteristics of low cost, easy processing, thin film layer and high current switch ratio, thus the device has extensive application prospect in the field of information electronics industry in the future.

Description

technical field [0001] The invention belongs to the field of optoelectronic devices and relates to a bistable device using a composite material system of nano crystals and polymers. Background technique [0002] Electric bistability refers to the phenomenon of having two different conductive states at the same voltage. When an electric field is applied to both sides of the functional layer film, when the field strength reaches a certain value, the device can be transformed from a low-conductivity state to a high-conductivity state. By applying a reverse electric field, the device can be transformed from a high conduction state to a low conduction state. Devices based on electrical bistability are important electronic devices in the field of semiconductor electronics. In recent years, with the rapid development of optoelectronic devices such as organic electroluminescent devices, organic thin film transistors, and organic solar cells, organic bistable devices have also attra...

AI Technical Summary

Problems solved by technology

At present, reports on nanocrystalline and polymer electrical bistable devices mainly focus on the bistable devices of metal nanocrystals and polymer hybrid films, while there are fewer reports on bistable devices of semiconductor nanocrystals and polymer films, and Reported electrical bistable device with low current switching ratio

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