Nanocrystalline Films Formation of 4,7-Bis(4-triphenylamino)benzo-2,1,3-thiadiazole through Electrophoretic Deposition

作者：Zhu, Yuanyuan^*; Si, Zhengkai; Qian, Lingfeng; Xue, Minzhao; Sheng, Qiaorong; Zhang, Qing; Liu, Yangang

来源：Japanese Journal of Applied Physics, 2010, 49(7): 072602.

DOI：10.1143/JJAP.49.072602

• Electrophoretic depositions
• Facile method
• Highest occupied molecular orbital
• Hole-transporting property
• Intermolecular charge transfer
• Nano-crystalline films
• Spin-coating film
• Triphenylamine derivatives

The nanocrystalline films of an amorphous triphenylamine derivative have been firstly formed by a facile electrophoretic deposition (EPD) method from a solution of protonated 4,7-bis(4-triphenylamino) benzo-2,1,3-thiadiazole. The films are composed of nanoparticles which diameters are controllably varied from 20 to 200 nm. Compared with spin-coating films, EPD films possess lower band gap and higher energy level of the highest occupied molecular orbital (HOMO), which means superior intermolecular charge-transfer ability and more excellent hole-transporting property. The facile method for preparing nanocrystalline films could also spread to other amorphous triphenylamine derivatives.

• 出版日期2010
• 单位上海交通大学