Bistable switching in plasma-polymerized acrylonitrile films

Tyczkowski, J.

doi:10.1016/0040-6090(91)90015-p

Cited by 2 publications

(2 citation statements)

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“…However, despite many years of development, the working mechanism is still highly debatable. 8,9 Various mechanisms, e.g., field induced charge transfer, [10][11][12][13] charge trapping, [14][15][16][17][18] metal oxide switching, 19,20 filament formation, [21][22][23][24] and polymer conformation change 25 have been proposed, but a comprehensive explanation with direct experimental proof has been elusive.…”

Section: Introductionmentioning

confidence: 99%

“…We have also observed similar effects in our stackable memory devices using a photocross-linkable polymer. 7 Aluminum oxide switches, 19 formation and rupture of carbon, 23 metallic, 24 or other filamentary channels 22,30 have been suggested to explain the filamentary nature of switching for these polymeric devices. However, the precise nature of these filaments and the formation mechanism are still not clear.…”

Section: Introductionmentioning

confidence: 99%

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Direct observation of localized conduction pathways in photocross-linkable polymer memory

Kwan

Bao

Shao

et al. 2009

Journal of Applied Physics

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Resistive switching in photocross-linkable polymer memory devices was found to occur in localized areas of the device. In order to elucidate the reason behind the switching, we used focused ion-beam to prepare a cross-section of the device. It was found that after the device was switched to the high conductive state, in certain parts of the device, the electrodes were only about 5 nm apart. This was probably caused by a combination of high electric field and metal injection into the polymer film. Gold injection into the polymer film by locally enhanced electric field was confirmed by transmission electron microscope-energy dispersive x-ray analysis. This model was in agreement with both the temperature dependent and transient behavior of our device. We conclude that the non-uniformities at the nanoscale interface of the electrode dominated the device characteristics while the polymer played only a secondary role.

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