ORGANIC LIGHT-EMITTING ELEMENT

• Main Authors: KAMATANI ATSUSHI, TAKAHASHI TETSUO, ORUI HIROKI, MURATSUBAKI KATANORI, MATSUDA YOJIRO, IIDA HARUNA, SHIOBARA SATORU, NISHIDE YOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 05.11.2015
• Subjects: ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY

PROBLEM TO BE SOLVED: To provide an organic light-emitting element having stable performance in the atmosphere.SOLUTION: The organic light-emitting element includes: a first organic compound layer disposed between a cathode and a light-emitting layer; and a second organic compound layer disposed between the light-emitting layer and the first organic compound layer and being in contact with the first organic compound layer. The first organic compound layer has a first organic compound, and the second organic compound layer has a second organic compound. The first organic compound is a viologen compound represented by general formula [1], and the second organic compound is an organic compound different from the viologen compound. 【課題】大気中で安定した性能を備える有機発光素子を提供する。【解決手段】陰極と発光層との間に配置される第一の有機化合物層と、発光層と第一の有機化合物層との間に配置され、かつ第一の有機化合物層に接している第二の有機化合物層と、を有し、第一の有機化合物層が、第一の有機化合物を有し、第二の有機化合物層が、第二の有機化合物を有し、第一の有機化合物が、下記一般式［１］で表わされるビオロゲン化合物であり、第二の有機化合物が、ビオロゲン化合物とは別種の有機化合物である有機発光素子。【選択図】なし