Synthesis and Characterization of Carbazole Dendrimers as Solution-Processed High Tg Amorphous Hole-Transporting Materials for Electroluminescent Devices
作者： Narid Prachumrak , Sukrawee Pansay , Supawadee Namuangruk , Tinnagon Kaewin , Siriporn Jungsuttiwong
关键词:
摘要: We report on an efficient and facile synthesis of up to 4th generation carbazole dendrons by using a mild Ullmann coupling reaction. The dendrimers, namely GnC (n = 1–4), are thermally stable amorphous materials with high glass transition temperatures (Tg) 347 °C exhibit chemically redox properties. compounds show great potential work as solution-processed hole-transporting for electroluminescent devices. Double-layer Alq3-based organic light-emitting diodes employing these dendrimers the layers device configuration ITO/PEDOT: PSS/GnC(spin-coating)(40 nm)/Alq3(50 nm)/LiF(0.5 nm):Al(150 nm) emit bright green color (λem 514 from Alq3 layer, maximum luminance, current efficiency, turn-on voltage 29,262 cd m–2, 5.11 cd A–1, 3.0 V, respectively. abilities act in terms thermal property performance superior common hole-transporters, N,N′-diphenyl-N,N′-bis(1-naphthyl)-(1,1′-biphenyl)-4,4′-diamine (NPB) N,N′-bis(3-methylphenyl)-N,N′-bis(phenyl)benzidine (TPD).
sci-hub.se 参考文章(45)
Jiuyan Li, Chunwah Ma, Jianxin Tang, Chun-Sing Lee, Shuittong Lee, Novel Starburst Molecule as a Hole Injecting and Transporting Material for Organic Light-Emitting Devices Chemistry of Materials. ,vol. 17, pp. 615- 619 ,(2005) , 10.1021/CM048337D
Arno Kraft, Self-association of a 1,3,4-oxadiazole-containing dendrimer Chemical Communications. ,vol. 1, pp. 77- 79 ,(1996) , 10.1039/CC9960000077
Tommie W. Kelley, Paul F. Baude, Chris Gerlach, David E. Ender, Dawn Muyres, Michael A. Haase, Dennis E. Vogel, Steven D. Theiss, Recent Progress in Organic Electronics: Materials, Devices, and Processes Chemistry of Materials. ,vol. 16, pp. 4413- 4422 ,(2004) , 10.1021/CM049614J
Preecha Moonsin, Narid Prachumrak, Ratanawalee Rattanawan, Tinnagon Keawin, Siriporn Jungsuttiwong, Taweesak Sudyoadsuk, Vinich Promarak, Carbazole dendronised triphenylamines as solution processed high Tg amorphous hole-transporting materials for organic electroluminescent devices Chemical Communications. ,vol. 48, pp. 3382- 3384 ,(2012) , 10.1039/C2CC16878B
Pei-Wei Wang, Yu-Ju Liu, Chelladurai Devadoss, P. Bharathi, Jeffrey S. Moore, Electroluminescent diodes from a single component emitting layer of dendritic macromolecules Advanced Materials. ,vol. 8, pp. 237- 241 ,(1996) , 10.1002/ADMA.19960080311
H. Mu, W. Li, R. Jones, A. Steckl, D. Klotzkin, A comparative study of electrode effects on the electrical and luminescent characteristics of Alq3/TPD OLED: Improvements due to conductive polymer (PEDOT) anode Journal of Luminescence. ,vol. 126, pp. 225- 229 ,(2007) , 10.1016/J.JLUMIN.2006.07.005
Ullrich Mitschke, Peter Bäuerle, The electroluminescence of organic materials Journal of Materials Chemistry. ,vol. 10, pp. 1471- 1507 ,(2000) , 10.1039/A908713C
Lian Duan, Liudong Hou, Tae-Woo Lee, Juan Qiao, Deqiang Zhang, Guifang Dong, Liduo Wang, Yong Qiu, Solution processable small molecules for organic light-emitting diodes Journal of Materials Chemistry. ,vol. 20, pp. 6392- 6407 ,(2010) , 10.1039/B926348A
Siriporn Jungsuttiwong, Tinnagon Keawin, Taweesak Sudyoadsuk, Vinich Promarak, Sukrawee Pansay, Narid Prachumrak, Multibromo-N-alkylcarbazoles: synthesis, characterization, and their benzo[b]thiophene derivatives Tetrahedron Letters. ,vol. 53, pp. 4568- 4572 ,(2012) , 10.1016/J.TETLET.2012.06.067
Zuoquan Jiang, Tengling Ye, Chuluo Yang, Dezhi Yang, Minrong Zhu, Cheng Zhong, Jingui Qin, Dongge Ma, None, Star-Shaped Oligotriarylamines with Planarized Triphenylamine Core: Solution-Processable, High-Tg Hole-Injecting and Hole-Transporting Materials for Organic Light-Emitting Devices† Chemistry of Materials. ,vol. 23, pp. 771- 777 ,(2011) , 10.1021/CM1018585