COMPOSITION FOR ORGANIC ELECTROLUMINESCENT ELEMENT AND ORGANIC ELECTROLUMINESCENT ELEMENT

• Main Authors: TAKEMOTO HIROMI, MIZUKAMI JUNJI, SHIMIZU WATARU
• Format: Patent
• Language: English; Japanese
• Published: 23.10.2014
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a composition for an organic electroluminescent element, which has a low foreign matter content.SOLUTION: The present invention relates to the composition for an organic electroluminescent element, which is for forming at least one layer selected from the group consisting of a light-emitting layer, a hole injection layer, and a hole transport layer of an organic electroluminescent element and contains an aromatic amine-based polymer having a weight-average molecular weight of 3,000-1,000,000 and an organic solvent. The content of the aromatic amine-based polymer is 0.05 wt.% or more. The Zn concentration in the composition is less than 0.5 ppm. 【課題】本発明は有機電界発光素子用組成物であって、異物の含有量が少ない組成物を提供することを目的とする。【解決手段】本発明は有機電界発光素子の発光層、正孔注入層及び正孔輸送層からなる群より選ばれる少なくとも１層を形成するための有機電界発光素子用組成物であって、重量平均分子量３，０００〜１，０００，０００の芳香族アミン系ポリマーと有機溶剤とを含み、前記芳香族アミン系ポリマーの含有量が０．０５重量％以上であって、前記組成物中のＺｎ濃度が０．５ｐｐｍ未満である、有機電界発光素子用組成物に関する。【選択図】図１