Ternary Memory Devices Based on Bipolar Copolymers with Naphthalene Benzimidazole Acceptors and Fluorene/Carbazole Donors

Abstract

Functional polymers show great potential in information storage applications. However, most of these polymer-based memory devices demonstrate limited capacity because of binary memory characteristic. Herein, three novel donor−acceptor-type bipolar conjugated copolymers containing the naphthalene benzimidazole unit as the acceptor and fluorene/carbazol as the donor were synthesized by Suzuki cross-coupling reaction. When applied in memory devices, these as-prepared polymers exhibit unique ternary resistance switch memory behaviors with high switching current ratios of 1

Ternary Electrical Memory Devices Based on Polycarbazole: SnO2 Nanoparticles Composite Material

“…The aromatic C-H stretch vibration absorptive peak (SVAP) is at the wave number 2925 cm −1 , the aliphatic C-H SVAP is at 2850 cm −1 , and the wave number 1767 cm −1 is C=O. SVAP, 1616-1483 cm −1 is C=C SVAP, and C-N SVAP is 1146 cm −1 [ 21 ]. For SnO 2 NPs, we can observe that there is an absorption peak at 3430 cm −1 , which is caused by the vibration of V O-H , and the peak observed at 639 cm −1 is caused by the vibration of the O-Sn-O group.…”

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Bistable non-volatile resistive memory devices based on ZnO nanoparticles embedded in polyvinylpyrrolidone

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