文献类型：期刊文献

英文题名：Construction of biomass-based AIEgens with dehydroabietic acid triarylamine and tetraphenylethene Moieties for non-doped OLEDs

作者：Gao, Yanan[1,2,3] Zhang, Xinwen[4] Song, Jie[5] Dou, Liwei[1,2,3] Gao, Hong[1,2,3,6] Shang, Shibin[1,2,3] Song, Zhanqian[1,2,3]

第一作者：Gao, Yanan

通信作者：Gao, H[1]|[a0005b559a5719e58df5b]高宏;

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Beijing, Peoples R China;[2]Key Lab Biomass Energy & Mat, Nanjing, Jiangsu, Peoples R China;[3]Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing, Jiangsu, Peoples R China;[4]Nanjing Univ Posts & Telecommun, Inst Adv Mat, Key Lab Organ Elect & Informat Displays, Nanjing 210036, Peoples R China;[5]Univ Michigan Flint, Dept Nat Sci, 303 E Kearsley St, Flint, MI 48502 USA;[6]16 Suojin 5 Cun, Nanjing 210042, Peoples R China

年份：2022

卷号：121

外文期刊名：TETRAHEDRON

收录：;Scopus(收录号：2-s2.0-85134721859);WOS:【SCI-EXPANDED(收录号:WOS:000863274600010)】；

基金：This work was supported by the National Natural Science Foundation of China (grants 31670576 and 32171729) .

语种：英文

外文关键词：Natural rosin; Dehydroabietic acid triarylamine (DTPA); Tetraphenylethene (TPE); Aggregation-induced emission luminogens; (AIEgens); Non-doped organic light-emitting diodes; (OLEDs)

摘要：Dehydroabietic acid triarylamine (DTPA) synthesized from renewable natural rosin is an excellent hole-transporting material but is affected by aggregation-caused quenching in the solid state. Herein, two new biomass-based AIE luminogens (AIEgens), namely DTPA-TPE and 2DTPA-TPE, were synthesized through the attachment of DTPA to tetraphenylethene (TPE). Their aggregates in poor solvents and thin films have a strong emission with a fluorescence quantum yield of up to 67.4%. DTPA AIEgens exhibit superior thermal and morphological stability, showing high thermal degradation (T-5d up to 412.0 ?) and glass transition (T-g up to 150.8 ?) temperatures. Electroluminescence (EL) devices with compounds used either as emitting layers (EMLs) or as EMLs and hole-transporting layers (HTLs) were constructed. The device with 2DTPA-TPE as the EML exhibits the best performance (turn-on voltage of 2.4 V, maximum luminance of 12,414 cd m(-2), current efficiency of 6.2 cd A(-1), and power efficiency of 6.5 lm W-1). The devices without the HTL (N,N '-di-1-naphthyl-N,N '-diphenylbenzidine (NPB)) exhibit performances comparable with or better than those of the devices with NPB. These results indicate that these compounds are promising luminescent materials for non-doped organic light-emitting diodes. (c) 2022 Elsevier Ltd. All rights reserved.