ORGANIC SEMICONDUCTOR DEVICE

• Main Authors: MORI KAZUHIRO, SATO WATARU, FUJITA RIEKO
• Format: Patent
• Language: English; Japanese
• Published: 11.10.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide an organic semiconductor device with high external quantum efficiency (EQE).SOLUTION: An organic semiconductor device includes a p-type conjugated polymer as a p-type organic semiconductor, an n-type conjugated polymer having a structural unit represented by the following formula (I) as an n-type organic semiconductor, and an n-type near-infrared absorbing compound in an active layer (in the formula (I), R1 and R2 each independently represent a linear or branched hydrocarbon group having 6 or more and 25 or less carbon atoms; L represents an aromatic heterocyclic group; s represents an integer of 1 or more and 3 or less).SELECTED DRAWING: None 【課題】外部量子効率（ＥＱＥ）の高い有機半導体デバイスを提供する。【解決手段】ｐ型有機半導体としてｐ型共役高分子、ｎ型有機半導体として、下記式（Ｉ）で表される構成単位を有するｎ型共役高分子、および、ｎ型近赤外吸収性化合物を、活性層に含有する有機半導体デバイス（式（Ｉ）中、Ｒ１及びＲ２は、それぞれ独立に炭素数６以上２５以下の直鎖又は分岐の炭化水素基を表し；Ｌは、芳香族複素環基を表し；ｓは、１以上３以下の整数を表す。）。【選択図】なし