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High electroluminescence efficiency and long device lifetime of a fluorescent green-light emitter using aggregation-induced emission

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Title
High electroluminescence efficiency and long device lifetime of a fluorescent green-light emitter using aggregation-induced emission
Author(s)
Hyocheol Jung; Hwangyu Shin; Siin Kim; Joonghan Kim; Byeong-Kwan An; Ji-Hoon Lee; Hyotcherl Ihee; Jongwook Park
Subject
Aggregation-induced emission, ; Device lifetime, ; Fluorescence, ; Green emitter, ; Luminance efficiency, ; Organic light-emitting diodes
Publication Date
2020-07
Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.87, pp.213 - 221
Publisher
ELSEVIER SCIENCE INC
Abstract
© 2020 The Korean Society of Industrial and Engineering Chemistry. Three bipolar materials, 4-(4,6-diphenyl-1,3,5-triazin-2-yl)-N,N-diphenylaniline (DPAT-Ph), 4-(4,6-diphenyl-1,3,5-triazin-2-yl)-N,N-diphenylnaphthalen-1-amine (DPAT-Na), and 10-(4,6-diphenyl-1,3,5-triazin-2-yl)-N,N-diphenylanthracen-9-amine (DPAT-An), were designed and synthesized. To achieve a bipolar character, diphenylamine (DPA) moiety and 2,4-diphenyl-1,3,5-triazine (DPT) moiety were introduced as electron donating and electron accepting groups, respectively. The three compounds exhibited UV maximum wavelengths (UVmax) at 395–454 nm and photoluminescence maximum wavelengths (PLmax) at 472–546 nm. 10-(4,6-Diphenyl-1,3,5-triazin-2-yl)-N,N-diphenylanthracen-9-amine (DPAT-An) shows AIE phenomenon even though DPAT-An does not have tetraphenylethylene (TPE) moiety which is representative AIE structure. DPAT-An exhibits over EQE value of 5% and long device lifetime of 1310 h without sublimation process
URI
https://pr.ibs.re.kr/handle/8788114/7792
DOI
10.1016/j.jiec.2020.04.003
ISSN
1226-086X
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > 1. Journal Papers (저널논문)
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