5 results about "Organic semiconductor" patented technology

To provide an organic thin film transistor including a pair of electrodes for allowing a current to flow through an organic semiconductor layer made of an organic semiconductor material, and a third electrode, wherein the organic semiconductor material is composed mainly of an arylamine polymer having a weight-average molecular weight (Mw) of 20,000 or more.

An organic semiconductor device is provided. A conductive gate layer and a gate dielectric layer are formed on a substrate. Patterned metal layers are formed on the gate dielectric layer beside the conductive gate layer. An electrode modified layer is formed on a top surface and sidewall of each of the patterned metal layer. The patterned metal layers and the electrode modified layers formed thereon serve a source and a drain. An organic semiconductor layer is formed on the source and the drain.

The invention provides an organic semiconductor material, the chemical formula of which is shown as the following. The organic semiconductor material contains triphenylamine, carboline and pyrene. Specifically, the triphenylamine has hole injection ability and transport property, the carboline has good electronic transport performance, and the pyrene has very high fluorescence quantum yield. Thus, the organic semiconductor material provided by the invention is a bipolar blue luminescent material with good hole transport and electronic transport abilities. The invention also provides a preparation method of the organic semiconductor material, and an electroluminescent device including the organic semiconductor material.

The invention belongs to the field of organic semiconductor materials, and discloses a bipolar blue light phosphorescent host material, a preparation method and an organic electroluminescent device thereof. The host material has a structural formula shown as the specification. The bipolar blue light phosphorescent host material provided by the invention has hole transport properties and electron transport properties at the same time, and enables balance transport of holes and electrons in a luminescent layer. With a high triplet state energy level, the host material can effectively prevent back transmission of energy to the host material in a luminescence process, thus greatly improving the luminescence efficiency.