ICCAS OpenIR
Synthesis, properties, and application of new luminescent polymers with both hole and electron injection abilities for light-emitting devices
Li, XC; Liu, YQ; Liu, MS; Jen, AKY
1999-06-01
Source PublicationCHEMISTRY OF MATERIALS
ISSN0897-4756
Volume11Issue:6Pages:1568-1575
AbstractNew luminescent polymers that contain both electron-withdrawing cyano groups and electron-rich moieties, triphenylamine (TPA) or tetraphenyldiaminobiphenyl (TPD), were synthesized by Knoevenagel condensation of 1,4-bis(cyanomethyl)-2-[(2-ethylhexyl)oxy]-5-methoxybenzene with the dialdehyde of TPA or TPD, respectively. The polymers were characterized by NMR, FT-IR, microanalysis, GPC, DSC, and TGA. Efficient orange photoluminescence was observed with an absolute quantum efficiency of 48% for the TPA incorporated polymer (TPA-CNPPV). Cyclic voltammetry investigation showed that the polymers presented reversible oxidation and reduction with relatively low potentials, which suggested that the polymers have both good electron and hole injection abilities. We demonstrated an effective approach to synthesize polymers with the triad properties of efficient photoluminescence, good hole injection and high electron-affinity properties, which are highly desirable for application in light-emitting devices. This point was supported by the demonstration of a single layer light-emitting device with a configuration of ITO/TPA-CNPPV/Al, in which good external quantum efficiency (0.1%) and bright luminance of 2100 cd/m(2) was achieved. Multilayer LEDs using the polymers as the active layers and different charge injection/transporting layers were also investigated.
Indexed BySCI
Language英语
WOS IDWOS:000080886100025
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:90[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/75190
Collection中国科学院化学研究所
Corresponding AuthorJen, AKY
Affiliation1.Northeastern Univ, Dept Chem, Boston, MA 02115 USA
2.Acad Sinica, Inst Chem, Beijin, Peoples R China
Recommended Citation
GB/T 7714
Li, XC,Liu, YQ,Liu, MS,et al. Synthesis, properties, and application of new luminescent polymers with both hole and electron injection abilities for light-emitting devices[J]. CHEMISTRY OF MATERIALS,1999,11(6):1568-1575.
APA Li, XC,Liu, YQ,Liu, MS,&Jen, AKY.(1999).Synthesis, properties, and application of new luminescent polymers with both hole and electron injection abilities for light-emitting devices.CHEMISTRY OF MATERIALS,11(6),1568-1575.
MLA Li, XC,et al."Synthesis, properties, and application of new luminescent polymers with both hole and electron injection abilities for light-emitting devices".CHEMISTRY OF MATERIALS 11.6(1999):1568-1575.
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