DIBENZOPYRROMETHENE BORON CHELATE COMPOUND, NEAR INFRARED LIGHT ABSORBING DYE, PHOTOELECTRIC CONVERSION ELEMENT, NEAR-INFRARED PHOTOSENSOR AND IMAGING ELEMENT

• Main Authors: YAKUSHIJI HIDENORI, KUBO YOSHIHARU, AOTAKE TATSUYA, YAMAMOTO TATSUYA
• Format: Patent
• Language: English; Japanese
• Published: 09.08.2018
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMISTRY; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To provide an organic compound having absorption characteristics in a near-infrared region, while showing high light durability, and has excellent photoelectric conversion performance, the organic compound to be used for a photoelectric conversion element, specifically an imaging element or a photosensor.SOLUTION: The present invention provides a dibenzopyrromethene boron chelate compound represented by formula (1) (Zis an unsubstituted/substituted naphthalene ring; R-Rindependently represent H, an aryl group, a heteroaryl group, an alkyl group, a cycloalkyl group, a halogen atom, a hydroxy group, an alkoxy group, a mercapto group, an alkylthio group, a nitro group, a substituted amino group, an amide group, an acyl group, a carboxyl group, an acyloxy group, a cyano group, a sulfo group, a sulfamoyl group, an alkyl sulfamoyl group, a carbamoyl group or an alkyl carbamoyl group).SELECTED DRAWING: Figure 1 【課題】高い光耐久性を示しつつ、近赤外領域帯に吸収特性を有し、優れた光電変換性能を有する有機化合物を用いた光電変換素子、特に撮像素子、光センサーとしての利用の提供。【解決手段】式（１）で表されるジベンゾピロメテンホウ素キレート化合物。（Ｚ１は無置換／置換のナフタレン環；Ｒ１〜Ｒ８は各々独立にＨ、アリール基、ヘテロアリール基、アルキル基、シクロアルキル基、ハロゲン原子、ヒドロキシ基、アルコキシ基、メルカプト基、アルキルチオ基、ニトロ基、置換アミノ基、アミド基、アシル基、カルボキシル基、アシルオキシ基、シアノ基、スルホ基、スルファモイル基、アルキルスルファモイル基、カルバモイル基又はアルキルカルバモイル基）【選択図】図１