Organic nonvolatile memory by dopant-configurable polymer

Lai, Qianxi and Zhu, Zuhua and Chen, Yong and Patil, Satish and Wudl, Fred. (2006) Organic nonvolatile memory by dopant-configurable polymer. Applied Physics Letters, 88 (13). p. 133515. ISSN 00036951

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Abstract

We report an organic, nonvolatile memory based on dopant concentration-induced conductance changes in a conjugated polymer. Consisting of a polymer poly [2-methoxy-5-(2′-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV)/ionic conductor (RbAg4I5) bilayer sandwiched between two metal electrodes, the device is electrically switched between its low-conductance “off” state and high-conductance “on” state reversibly and repeatedly with on/off ratios above two orders of magnitude and pulse durations as short as 1 μs when a voltage exceeding its threshold values (>+3.5 V or <−3.8 V) is applied. The conductance change is attributed to the injection/depletion of iodide dopant ions in the MEH-PPV layer by the applied electric field.

Item Type: Article
InterNano Taxonomy: Nanoscale Objects and Nanostructured Materials > Nanodevice Structures
Nanoscale Objects and Nanostructured Materials > Nanocomposites > Polymeric
Collections: Nanomanufacturing Research Collection
Depositing User: Moureen Kemei
Date Deposited: 24 Mar 2010 20:07
Last Modified: 24 Mar 2010 20:07
URI: http://eprints.internano.org/id/eprint/361

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