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

doi:10.7503/cjcu20120257

Abstract

Abstract:

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 10⁴, a long retention time above 10⁴ 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.

Key words: Dendrimer, Aggregation-induced emission enhance, Electrical storage, Fluorecence property, Solvent effect

CLC Number:

O625
O646

TrendMD:

YANG Hua, QI Qi, WANG Bin-Bin, QIAN Ying. Aggregation-induced Emission Enhance and Electrical Storage Properties of 1,2,4,5-Tetra{4-[N,N-di(4-iodophenyl)amino]styryl}benzene[J]. Chem. J. Chinese Universities, 2013, 34(8): 1880.

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

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