Journal
MACROMOLECULAR CHEMISTRY AND PHYSICS
Volume 213, Issue 23, Pages 2472-2478Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.201200465
Keywords
charge transfer; conjugated polymer; platinum complex; polymer memory
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Funding
- National Basic Research Program of China (973 Program) [2009CB930601, 2012CB933300]
- National Natural Science Foundation of China [21174064, 21171098, 61274018, 61076067]
- Ministry of Education of China [IRT1148]
- Natural Science Foundation of Jiangsu Province of China [BK2012835]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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A novel conjugated polymer, containing carbazole which acted as an electron-donor moiety, and a Pt(II) complex which acted as an electron-acceptor moiety, was synthesized and characterized. Electrical characterizations for the sandwiched polymer memory device (ITO/polymer/Al) indicate that the polymer possesses electrical bistability and the device exhibits resistive random-access memory. The memory mechanism has been investigated through theoretical calculations and attributed to the formation and dissociation of a charge-transfer state under the applied voltage. The device exhibits excellent memory performances, such as low threshold voltage, high ON/OFF current ratio, and good stability.
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