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Electrical Bistable Characteristics of Organic Charge Transfer Complex for Memory Device Applications
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 Title & Authors
Electrical Bistable Characteristics of Organic Charge Transfer Complex for Memory Device Applications
Lee, Chang-Lyoul;
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In this work, the electrical bistability of an organic CT complex is demonstrated and the possible switching mechanism is proposed. 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP) and tetracyanoquinodimethane (TCNQ) are used as an organic donor and acceptor, respectively, and poly-methamethylacrylate (PMMA) is used as a polymeric matrix for spin-coating. A device with the Al/()/PMMA:BCP:TCNQ[1:1:0.5 wt%]/Al configuration demonstrated bistable and switching characteristics similar to Ovshinsky switching with a low threshold voltage and a high ON/OFF ratio. An analysis of the current-voltage curves of the device suggested that electrical switching took place due to the charge transfer mechanism.
Organic memory;Charge transfer complex;Electrical switching;Bistability;Retention;Filament;
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