COMPOSITION, CHARGE TRANSPORT FILM AND ORGANIC ELECTROLUMINESCENT ELEMENT

• Main Authors: BANDO AKIMASA, KOMATSU EIJI, GOROMARU HIDETAKA
• Format: Patent
• Language: English; Japanese
• Published: 02.04.2020
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide an organic electroluminescent element which can be driven with low voltage, and capable of long life driving with high efficiency.SOLUTION: A composition contains an electron acceptable compound A having a structure unit expressed by the following formula (1), and a charge transport compound A having a specific structure unit. A charge transport film, and an organic electroluminescent element are formed by using that composition. (In the formula (1),*represents a binding site, Yrepresents a substituted or an unsubstituted aromatic ring group having a ring formation atomicity of 3-60, Rrepresents a substituted or an unsubstituted alkyl radical of 1-20C, Rrepresents a substituted or an unsubstituted alkyl radical of 1-20C, k is an integer of 1-10, m is 1 or 2, and nis 0 or 1).SELECTED DRAWING: None 【課題】低電圧で駆動可能、高効率で長寿命駆動可能な有機電界発光素子を提供する。【解決手段】下記式（１）で表される構造単位を有する電子受容性化合物Ａと、特定の構造単位を有する電荷輸送性化合物Ａとを含む組成物、その組成物を用いて形成された電荷輸送膜、及び有機電界発光素子。［式（１）中、＊は結合部位を表し、Ｙ1は、置換もしくは無置換の環形成原子数３以上６０以下の芳香環基等を表し、Ｒ11は、置換もしくは無置換の炭素数1以上２０以下のアルキル基等を表し、Ｒ12は、置換もしくは無置換の炭素数1以上２０以下のアルキル基等を表し、ｋは１以上１０以下の整数であり、ｍは１又は２であり、ｎは０又は１である。］【選択図】なし