Aggregation-induced Emission Enhance and Electrical Storage Properties of 1,2,4,5-Tetra{4-[N,N-di(4-iodophenyl)amino]styryl} benzene

作者：Yang Hua; Qi Qi; Wang Bin Bin; Qian Ying^*

来源：Chemical Journal of Chinese Universities, 2013, 34(8): 1880-1886.

DOI：10.7503/cjcu20120257

• Dendrimer
• Aggregation-induced emission enhance
• Electrical storage
• Fluorecence property
• Solvent effect

A conjugated dendrimer based triphenylamine, 1,2,4,5-tetra{4-[N,N-di(4-iodophenyl)amino]styryl} benzene (TPAB-I), was synthesized through Wittig-Horner reaction. The maximum emission wavelengths of TPAB-I were 451, 464, 478, 481 and 511 nm in toluene, THF, ethyl acetate, CH2Cl2, and DMF, respectively. The maximum emission wavelengths of solid and film of TPAB-I were 526 and 488 nm, respectively. Aggregation-induced emission enhancement of TPAB-I had been found. The possible mechanism of this phenomenon was discussed. An organic electrical memory device having the Al/TPAB-I/indium-tin oxide (ITO) sandwich structure was fabricated firstly. The device exhibited a flash memory effect with a high ON/OFF current ratio nearly 10(4), a long retention time above 10(4) s and a read voltage 1. 0 V. The read voltage and erase voltage were 1. 5 and -2. 0 V, respectively. The results demonstrated that the synthetic TPAB-I possessed a high potential to become dendrimeric memory device.

• 出版日期2013-8-10
• 单位东南大学