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Novel 1,8-naphthalimide derivatives for standard-red organic light-emitting device applications
Luo, S.; J. Lin; J. Zhou; Y. Wang; X. Y. Liu; Y. Huang; Z. Y. Lu and C. W. Hu
2015
发表期刊Journal of Materials Chemistry C
卷号3期号:20页码:5259-5267
摘要Three red-emissive D-pi-A-structured fluorophores with an aromatic amine as the donor, ethene-1,2-diyl as the pi-bridge, and 1,8-naphthalimide as the acceptor subunit, namely, (E)-6-(4-(dimethylamino) styryl)-2-hexyl-1H-benzo[de]isoquinoline-1,3(2H)-dione (Nap1), (E)-2-(2,6-di(isopropyl)phenyl)-6-(4-(dimethylamino)styryl)-1H-benzo[de]isoquinoline-1,3(2H)-dione(Nap2) and (E)-2-(2,6-di(isopropyl)phenyl)-6-(2-(1,1,7,7-tetramethyl-2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-9-yl) vinyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione (Nap3), were designed and synthesized. In-depth investigations on the correlations between their molecular structures and photophysical characteristics revealed that the presence of an electron-rich 4-dimethylaminophenyl donor moiety in compound Nap1 could endow it with a red emission (e.g., lambda(PLmax) = 641 nm in the host-guest blend film with a 14 wt% guest composition); moreover, the replacement of the n-hexyl group of Nap1 bonding to the imide nitrogen atom for a more bulky 2,6-di(isopropyl)phenyl one would result in compound Nap2 with more alleviated concentration quenching. Alteration of the 4-(dimethylamino) phenyl donor subunit of Nap2 into a more electron-donating 1,1,7,7-tetramethyljulolidin-9-yl substituent would render compound Nap3 with more improved chromaticity (e.g., lambda(PLmax) = 663 nm in a 14 wt% guest-doped film). Consequently, Nap3 could not only emit standard-red fluorescence with satisfactory chromaticity, but it also showed suppressed intermolecular interactions. Using Nap3 as the dopant, a heavily doped standard-red organic light-emitting diode (OLED) with the device configuration of ITO/MoO3 (1 nm)/TcTa (40 nm)/CzPhONI:Nap3 (14 wt%) (20 nm)/TPBI (45 nm)/LiF (1 nm)/Al (80 nm) was fabricated, and the Commission Internationale de L'Eclairage coordinates, maximum external quantum efficiency and maximum current efficiency of this OLED were (0.67,0.32), 1.8% and 0.7 cd A(-1), respectively. All these preliminary results indicated that 1,8-naphthalimide derivatives could act as quite promising standard-red light-emitting materials for OLED applications.
收录类别SCI ; EI
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/55343
专题中科院长春光机所知识产出
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GB/T 7714
Luo, S.,J. Lin,J. Zhou,et al. Novel 1,8-naphthalimide derivatives for standard-red organic light-emitting device applications[J]. Journal of Materials Chemistry C,2015,3(20):5259-5267.
APA Luo, S..,J. Lin.,J. Zhou.,Y. Wang.,X. Y. Liu.,...&Z. Y. Lu and C. W. Hu.(2015).Novel 1,8-naphthalimide derivatives for standard-red organic light-emitting device applications.Journal of Materials Chemistry C,3(20),5259-5267.
MLA Luo, S.,et al."Novel 1,8-naphthalimide derivatives for standard-red organic light-emitting device applications".Journal of Materials Chemistry C 3.20(2015):5259-5267.
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