Eu(tta)3DPPZ-based organic light-emitting diodes: spin-coating vs. vacuum-deposition. Issue 28 (7th July 2021)

• Record Type: Journal Article
• Authors: Kuznetsov, Kirill M.; Kozlov, Makarii I.; Aslandukov, Andrey N.; Vashchenko, Andrey A.; Medved'ko, Aleksei V.; Latipov, Egor V.; Goloveshkin, Alexander S.; Tsymbarenko, Dmitry M.; Utochnikova, Valentina V.
• Is Part Of: Dalton transactions. Volume 50:Issue 28(2021)
• Page Start: 9685
• Page End: 9689
• Publication Date: 2021-07-07
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d1dt01316e
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : OLED with spin-coated EML (Eu(tta)3 DPPZ (25%):CBP) was superior to the identical OLED with the EML deposited from vapor phase. The reason for that was the higher density and smoothness of the solution-processed layer. Abstract : The effect of the emission layer deposition method on the characteristics of OLEDs was studied on the example of the europium mixed-ligand complex Eu(tta)3 DPPZ (tta: 2-thenoyltrifluoroacetone, DPPZ: dipyrido[3, 2-a:2′c, 3′c-c]phenazine). The maximum brightnesses of both OLEDs almost coincided, though OLED based on the spin-coated layer operated at lower voltages. The reason for that was the higher density and smoothness of the solution-processed layer.