Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Novel D-A-D Fluorescent Dyes Based on 9-(p-Tolyl)-2,3,4,4a,9,9a-Hexahydro-1H-Carbazole as a Donor Unit for Solution-Processed Organic Light-Emitting-Diodes
Molecules ( IF 4.2 ) Pub Date : 2021-05-12 , DOI: 10.3390/molecules26102872 Vladislav M Korshunov 1, 2 , Maxim S Mikhailov 3, 4 , Timofey N Chmovzh 3, 4 , Andrey A Vashchenko 1 , Nikita S Gudim 3 , Lyudmila V Mikhalchenko 3 , Ilya V Taydakov 1, 5 , Oleg A Rakitin 3, 4
Molecules ( IF 4.2 ) Pub Date : 2021-05-12 , DOI: 10.3390/molecules26102872 Vladislav M Korshunov 1, 2 , Maxim S Mikhailov 3, 4 , Timofey N Chmovzh 3, 4 , Andrey A Vashchenko 1 , Nikita S Gudim 3 , Lyudmila V Mikhalchenko 3 , Ilya V Taydakov 1, 5 , Oleg A Rakitin 3, 4
Affiliation
New fluorescent D-A-D dyes containing 9-(p-tolyl)-2,3,4,4a,9,9a-hexahydro-1H-carbazole as a donor unit and 2,1,3-benzochalcogenadiazoles as an electron-withdrawing group were synthesized. The photoluminescent and electroluminescent properties of novel dyes for fluorescent OLED application were investigated. It was demonstrated that the replacement of lightweight heteroatoms by heavier ones enables the fine tuning of the maximum emission without significantly reducing the luminescence quantum yield. The maximum quantum yield value of 62.6% for derivatives based on 2,1,3-benzoxadiazole (1a) in cyclohexane was achieved. Two devices with the architecture of glass/ITO/PEDOT-PSS/poly-TPD/EML/TPBi/LiF/Al (EML = emitting layer) were fabricated to check the suitability of the synthesized compounds as a single active emission layer in OLED. These OLEDs exhibited clear red electroluminescence of the dyes with the maximum current efficiency of 0.85 Cd/A.
中文翻译：
基于9-（对甲苯基）-2,3,4,4a，9,9a-六氢-1H-咔唑的新型DAD荧光染料作为溶液处理有机发光二极管的供体单元
新型荧光DAD染料包含9-（对甲苯基）-2,3,4,4a，9,9a-六氢-1 H-咔唑作为供体单元和2,1,3-苯并硫代二唑作为吸电子基团。合成的。研究了用于荧光OLED的新型染料的光致发光和电致发光性能。已经证明，用较重的杂原子代替轻质杂原子能够对最大发射进行微调，而不会显着降低发光量子产率。基于2,1,3-苯并恶二唑（1a在环己烷中）。制造了两种具有玻璃/ ITO / PEDOT-PSS / poly-TPD / EML / TPBi / LiF / Al体系结构的设备（EML =发光层），以检查合成化合物作为OLED中单个活性发光层的适用性。这些OLED呈现出清晰的红色电致发光染料，最大电流效率为0.85 Cd / A。
更新日期：2021-05-12
中文翻译：
基于9-（对甲苯基）-2,3,4,4a，9,9a-六氢-1H-咔唑的新型DAD荧光染料作为溶液处理有机发光二极管的供体单元
新型荧光DAD染料包含9-（对甲苯基）-2,3,4,4a，9,9a-六氢-1 H-咔唑作为供体单元和2,1,3-苯并硫代二唑作为吸电子基团。合成的。研究了用于荧光OLED的新型染料的光致发光和电致发光性能。已经证明，用较重的杂原子代替轻质杂原子能够对最大发射进行微调，而不会显着降低发光量子产率。基于2,1,3-苯并恶二唑（1a在环己烷中）。制造了两种具有玻璃/ ITO / PEDOT-PSS / poly-TPD / EML / TPBi / LiF / Al体系结构的设备（EML =发光层），以检查合成化合物作为OLED中单个活性发光层的适用性。这些OLED呈现出清晰的红色电致发光染料，最大电流效率为0.85 Cd / A。
京公网安备 11010802027423号