期刊
ORGANIC ELECTRONICS
卷 9, 期 1, 页码 39-44出版社
ELSEVIER
DOI: 10.1016/j.orgel.2007.07.008
关键词
conductance switching; memory phenomenon; multilevel memory; molecular multilevel memory
We report voltage-driven electrical histability in an organic semiconductor, namely Ponceau SS. Conductance switching to different levels or multilevel switching in devices based on thin-films is due to different density of high-conducting molecules. In a monolayer of Ponceau SS, we have observed one low-conducting and two high-conducting states. This is due to three configurable planes of the molecule exhibiting at least two stable high-conducting conformers. Apart from establishing conductance switching to be a molecular phenomenon, the multilevel conductance in a monolayer shows that a single molecule can exhibit multilevel memory application. (c) 2007 Elsevier B.V. All rights reserved.
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