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Star-Shaped Oligotriarylamines with Planarized Triphenylamine Core: Solution-Processable, High-T-g Hole-Injecting and Hole-Transporting Materials for Organic Light-Emitting Devices
Jiang, Zuoquan1; Ye, Tengling2; Yang, Chuluo1; Yang, Dezhi2; Zhu, Minrong1; Zhong, Cheng1; Qin, Jingui1; Ma, Dongge2
2011-02-08
Source PublicationCHEMISTRY OF MATERIALS
ISSN0897-4756
Volume23Issue:3Pages:771-777
AbstractTwo novel star-shaped oligotriarylamines with planar triphenylamine core and peripheral triarylamine groups, namely FATPA-T and FATPA-Cz, were synthesized by Suzuki cross-coupling reaction. The molecular design imparts the materials with the following features: (i) excellent thermal stabilities with quite high glass transition temperatures (237 degrees C for FATPA-T and 272 degrees C for FATPA-Cz); (ii) good solution-processability; (iii) good hole mobility, efficient hole injection, and electron-blocking functions. Furthermore, their optoelectronic properties can be modulated by the peripheral triarylamine groups. For example, FATPA-T with triphenylamine peripheries shows the significantly red-shifted absorption and emission, as well as the small band gap as compared to FATPA-Cz with carbazole peripheries. Double-layer Alq(3)-emitting OLEDs using FATPA-T or FATPA-Cz as hole-transport layer by spin-coating method were fabricated, and the FATPA-Cz-based devices show greatly improved performance as compared to standard NPB-based device by vacuum-evaporation of NPB. The optimized three-layer Alq(3)-emitting OLEDs by using FATPA-Cz and NPB as double hole-transport layers exhibit the maximum current efficiency of 6.83 cd/A, which is the highest for the Alq3-based green emission under the similar device structures. The advantages of solution-processablity and very high T-g make the star-shaped oligotriarylamines ideal substitutes for conventional arylamines as hole-inject and hole-transport materials.
DOI10.1021/cm1018585
Indexed BySCI
Language英语
WOS IDWOS:000286691100033
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:94[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73570
Collection中国科学院化学研究所
Corresponding AuthorYang, Chuluo
Affiliation1.Wuhan Univ, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Zuoquan,Ye, Tengling,Yang, Chuluo,et al. Star-Shaped Oligotriarylamines with Planarized Triphenylamine Core: Solution-Processable, High-T-g Hole-Injecting and Hole-Transporting Materials for Organic Light-Emitting Devices[J]. CHEMISTRY OF MATERIALS,2011,23(3):771-777.
APA Jiang, Zuoquan.,Ye, Tengling.,Yang, Chuluo.,Yang, Dezhi.,Zhu, Minrong.,...&Ma, Dongge.(2011).Star-Shaped Oligotriarylamines with Planarized Triphenylamine Core: Solution-Processable, High-T-g Hole-Injecting and Hole-Transporting Materials for Organic Light-Emitting Devices.CHEMISTRY OF MATERIALS,23(3),771-777.
MLA Jiang, Zuoquan,et al."Star-Shaped Oligotriarylamines with Planarized Triphenylamine Core: Solution-Processable, High-T-g Hole-Injecting and Hole-Transporting Materials for Organic Light-Emitting Devices".CHEMISTRY OF MATERIALS 23.3(2011):771-777.
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