高等学校化学学报

高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (8): 1880.doi: 10.7503/cjcu20120257

• 有机化学 • 上一篇    下一篇

1,2,4,5-四{4-[N,N-二(4-碘苯基)氨基]苯乙烯基}苯的聚集诱导发光增强及电存储性质

杨铧, 齐齐, 王彬彬, 钱鹰   

  1. 东南大学化学化工学院, 南京 211189
  • 收稿日期:2012-03-21 出版日期:2013-08-10 发布日期:2013-07-19
  • 通讯作者: 钱鹰,女,博士,教授,博士生导师,主要从事光电材料研究.E-mail:yingqian@seu.edu.cn E-mail:yingqian@seu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 61178057)资助.

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

YANG Hua, QI Qi, WANG Bin-Bin, QIAN Ying   

  1. School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
  • Received:2012-03-21 Online:2013-08-10 Published:2013-07-19

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摘要：

通过Wittig-Horner反应合成了1个三苯胺共轭树枝分子1,2,4,5-四{4-[N,N-二(4-碘苯基)氨基]苯乙烯基}苯(TPAB-I). TPAB-I在甲苯、 四氢呋喃、 乙酸乙酯、 二氯甲烷和DMF溶液中的最大荧光发射峰分别位于451, 464, 478, 481和511 nm; 其固体粉末和旋涂膜的最大发射波长分别为526和488 nm. 实验结果表明, TPAB-I具有明显的聚集诱导发光增强效应. 将三苯胺共轭树枝分子TPAB-I用于制作有机电存储器件, 制得了三明治夹心结构的Al/TPAB-I/ITO电存储器件. 该电存储器ON/OFF状态下电流比接近104, 擦除电压为-2.0 V, 写入电压为1.5 V, 在1.0 V的读取电压下, 电存储器在104 s内均能保持良好的稳定性, 具有较好的电存储性能.

关键词: 树枝分子, 聚集态诱导发光增强, 电存储性质, 荧光性质, 溶剂效应

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

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