宁波大学学报（理工版）
寧波大學學報（理工版）
저파대학학보（리공판）
JOURNAL OF NINGBO UNIVERSITY(NSEE)
2014年
3期
74-78
,共5页
聚西佛碱%电致阻变效应%给体%受体%电荷转移
聚西彿堿%電緻阻變效應%給體%受體%電荷轉移
취서불감%전치조변효응%급체%수체%전하전이
Poly(schiff base) (PA)%resistive switching effect%donor%acceptor%charge transfer
在酸性环境下,利用4,4,-双(3-硝基-4-甲酰基苯基硫醚)二苯砜与4,4’-二氨基-4’’-甲基三苯胺的缩聚反应制备给体-受体型的聚西佛碱(PA)。其中二苯砜单体为聚合物的电荷受体单元,而三苯胺为电荷给体单元。在电场的作用下, Pt/PA/ITO具有较稳定、可重复的电致阻变效应。其物理机制是材料中给体和受体间发生了电荷转移,由初始高电阻状态的给体-受体结构转变到低电阻状态的给体+-受体-结构。
在痠性環境下,利用4,4,-雙(3-硝基-4-甲酰基苯基硫醚)二苯砜與4,4’-二氨基-4’’-甲基三苯胺的縮聚反應製備給體-受體型的聚西彿堿(PA)。其中二苯砜單體為聚閤物的電荷受體單元,而三苯胺為電荷給體單元。在電場的作用下, Pt/PA/ITO具有較穩定、可重複的電緻阻變效應。其物理機製是材料中給體和受體間髮生瞭電荷轉移,由初始高電阻狀態的給體-受體結構轉變到低電阻狀態的給體+-受體-結構。
재산성배경하,이용4,4,-쌍(3-초기-4-갑선기분기류미)이분풍여4,4’-이안기-4’’-갑기삼분알적축취반응제비급체-수체형적취서불감(PA)。기중이분풍단체위취합물적전하수체단원,이삼분알위전하급체단원。재전장적작용하, Pt/PA/ITO구유교은정、가중복적전치조변효응。기물리궤제시재료중급체화수체간발생료전하전이,유초시고전조상태적급체-수체결구전변도저전조상태적급체+-수체-결구。
Donor-acceptor (D-A) poly(Schiff base) derivative (or polyazothine, PA), incorporating the 4,4’-bis(3-nitro-4-formyl phenylthio)diphenyl sulfone group acting as an electron acceptor unity and the 4,4’-diamino-4’’-methyltriphenylamine group acting as an donor unity, respectively, is synthesized successfully via polycondensation reaction under acidic conditions. The as-fabricated Pt/PA/ITO device shows the stable and repeatable resistive switching behavior which originates from the charge transfer interaction between the electron donor-acceptor pairs. This process may lead the pristine high resistance state of the D-A structured polymer to the low resistance state of the charge-separated D+-A-structure.
