Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 22, Issue 19, Pages 9576-9583Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm16287c
Keywords
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Funding
- National Basic Research Program of China (973 Program) [2009CB930601, 2012CB933300]
- National Natural Science Foundation of China [21174064, 21171098, 61076067]
- Natural Science Fund for Colleges and Universities in Jiangsu Province [10KJB430010]
- Ministry of Education of China [IRT1148]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Nanjing University of Posts and Telecommunications [NY210029, NY211003]
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We have synthesized conjugated polymers containing Pt(II) complexes in the side-chain with different main-chains via a Suzuki coupling reaction. These polymers exhibit bistable properties and can be applied in memory devices, in which charge transfer and traps are responsible for the conductance switching behavior. The devices could be defined as resistive random-access memory (ReRAM) with a high ON/OFF current ratio, excellent stability and high read cycles (10(7)). Furthermore, through the study of the electrochemical properties and theoretical calculations of the polymers, we investigated the significant effect of the polymer main-chain on the memory device performances. The device based on the polymer with a polycarbazole main-chain exhibited a lower threshold voltage and a higher ON/OFF current ratio than the device based on the polymer with a polyfluorene main-chain. Our preliminary results indicate that this kind of material offers promising opportunities for the development of polymer memory devices.
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