文献类型：期刊文献

英文题名：Multifunctional conjugated oligomers containing novel triarylamine and fluorene units with electrochromic, electrofluorochromic, photoelectron conversion, explosive detection and memory properties

作者：Yang, Caiyu[1];Cai, Wanan[1];Zhang, Xu[1];Gao, Laixu[1,2];Lu, Qingyi[1];Chen, Ye[1];Zhang, Zhipeng[1];Zhao, Ping[3,4];Niu, Haijun[1,5];Wang, Wen[6]

机构：[1]Heilongjiang Univ, Sch Chem Chem Engn & Mat, Dept Macromol Sci & Engn, Key Lab Funct Inorgan Mat Chem,Minist Educ, Harbin 150086, Heilongjiang, Peoples R China;[2]Heilongjiang Univ, Sch Elect Engn, Harbin 150080, Heilongjiang, Peoples R China;[3]East China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[5]Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA;[6]Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Heilongjiang, Peoples R China

年份：2019

卷号：160

起止页码：99

外文期刊名：DYES AND PIGMENTS

收录：;EI(收录号：20183205653585);WOS:【SCI-EXPANDED(收录号:WOS:000447816700014)】；

基金：This work was supported by the National Natural Science Foundation of China [grant numbers (51773053)]; Heilongjiang Province Foundation for Returners from Oversea (LC2018024); Reserve Talented Person of Harbin (2015RAXXJ015); Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (No.ES201701); Heilongjiang Province Foundation for Returners from Oversea.

语种：英文

外文关键词：Triarylamine; Electrochromic; Electrofluorochromic; Memory; Explosive detection

摘要：A multifunctional integrated platform based on conjugated oligomers containing novel triarylamine (TAA) and fluorene units with responding to voltage, light and explosives stimuli and performing for sensors, detectors, memory media and high contrast displays was designed, and the stimuli-responsive mechanisms were studied. These oligomers show excellent thermal stability with no significant weight loss below 350 degrees C in nitrogen atmosphere. During the electrochemical reoxidation process, the oligomer films exhibit two pairs of obvious redox peaks with the strong color changes from yellowish of neutral state to green and blue of oxidized state, and remain good continuous cyclic stability over 500s with a cycle time of 10s. The electrofluorescent properties of the oligomers also can be tuned by electrochemistry redox, exhibiting high contrast. Meanwhile, non-volatile rewritable flash memory devices were produced with the sandwich structure ITO/oligomer/Al, which could gain the ON/OFF current ratio as high as about 10(4) at low threshold voltage of 1.2 V.