Journal
IEEE ELECTRON DEVICE LETTERS
Volume 28, Issue 11, Pages 967-969Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2007.906805
Keywords
compliance current; filament; 6F-HAB-diphenyl carbamyl (PI-DPC)
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Funding
- National Research Foundation of Korea [R0A-2005-000-10068-0, 과C6A1609, R11-2000-070-08002-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this letter, we investigated the current-dependent switching characteristics of Al/6F-HAB-diphenyl carbamyl (PI-DPC)/Al devices fabricated by spin coating. The current required to switch off the device increased with an increase in the current compliance, limiting the ON-state current, whereas the on and off voltages were almost constant. In addition, the turn-off current and the on and off voltages remained almost constant at the constant current compliance. The observed phenomenon indicates that the bistability of the PI-DPC device that is induced by controlling the current is attributed to filament formation and repulsive Coulomb interaction by charge trapping.
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