[6,6]-Phenyl C-61 Butyric Acid Methyl Ester-Polymer Nanocomposite: A Good Material Platform for Organic Light-Emitting Diodes

作者：Yan Guang; Zhao Suling^*; Xu Zheng; Zhang Fujun; Kong Chao; Liu Xiaodong; Gong Wei; Xu Xurong

来源：Journal of Nanoscience and Nanotechnology, 2011, 11(11): 9421-9425.

DOI：10.1166/jnn.2011.5206

• Nanocomposite
• Doping
• Organic Light Emitting Diode
• Hole-Transporting

PCBM-polymer nanocomposites [[6,6]-Phenyl C-61 butyric acid methyl ester (PCBM):Poly(9-vinylcarbazole) (PVK)] were prepared by dissolving them in chloroform. Photophysical properties were studied first, and then the hole-only devices were fabricated to study the hole-transporting properties. The specially designed organic light-emitting diodes (OLEDs) with the structure of indium tin oxide (ITO)/PCBM:PVK (x wt%, similar to 40 nm)/4,4'-bis(2,2'-diphenylvinyl)-1,1'-biphenyl (DPVBi) (30 nm)/Tris-(8-hydroxyquinoline)aluminum (Alq(3)) (30 nm)/lithium fluoride (LiF) (1 nm)/Al were fabricated to verify the transport properties of the nanocomposites. Finally, the nanocomposites were applied in the Alq(3)-based OLEDs as a hole-transporting layer. A significant improvement was observed in OLEDs when the nanocomposites were used to replace the conventional pristine PVK.

• 出版日期2011-11
• 单位北京交通大学