Department of Chemical Engineering, Kyung Hee University, Yongin-si, Gyeonggi-do, 17104, Republic of Korea.
J Nanosci Nanotechnol. 2021 Sep 1;21(9):4654-4659. doi: 10.1166/jnn.2021.19300.
New green emitter is designed and synthesized by selecting anthracene having high photoluminescence quantum yield (PLQY) and diphenylamine side group substituted methyl and t-butyl group: ,-bis(5-(tert-butyl)-2-methylphenyl)-,-bis(2,4-dimethylphenyl)anthracene-9,10-diamine (3Me-1Bu-TPADA). Photophysical, electrochemical, and electroluminescent (EL) properties of 3Me-1Bu-TPADA were investigated. The maximum photoluminescence (PL) emission wavelengths of 3Me-1Bu-TPADA in solution and in a film were 528 nm and 531 nm, respectively. 3Me-1Bu-TPADA has excellent thermal properties with glass transition temperatures () of 110 °C, melting temperatures () of 217 °C of, and degradation temperature (Td) of 330 °C. 3Me-1Bu-TPADA was used as an emitting layer in non-doped devices: ITO/2-TNATA (60 nm)/NPB (15 nm)/3Me-1Bu-TPADA (30 nm)/Alq₃ (30 nm)/LiF (1 nm)/Al (200 nm). The 3Me-1Bu-TPADA device showed luminance efficiency of 6.05 cd/A, EQE of 2.68% at 10 mA/cm².
新的绿色发光体是通过选择具有高荧光量子产率（PLQY）和二苯胺侧基取代甲基和叔丁基的蒽来设计和合成的：，-双（5-（叔丁基）-2-甲基苯基）-，-双（2,4-二甲基苯基）蒽-9,10-二胺（3Me-1Bu-TPADA）。研究了 3Me-1Bu-TPADA 的光物理、电化学和电致发光（EL）性质。3Me-1Bu-TPADA 在溶液和薄膜中的最大荧光（PL）发射波长分别为 528nm 和 531nm。3Me-1Bu-TPADA 具有出色的热性能，玻璃化转变温度（Tg）为 110°C，熔融温度（Tm）为 217°C，降解温度（Td）为 330°C。3Me-1Bu-TPADA 被用作无掺杂器件的发射层：ITO/2-TNATA（60nm）/NPB（15nm）/3Me-1Bu-TPADA（30nm）/Alq3（30nm）/LiF（1nm）/Al（200nm）。3Me-1Bu-TPADA 器件在 10mA/cm²时的亮度效率为 6.05cd/A，EQE 为 2.68%。
