Electrical Bistability and WORM Memory Effects in Donor–Acceptor Polymers Based on Poly(<i>N</i>‐vinylcarbazole)

Zhang, Bin; Liu, Gang; Chen, Yu; Wang, Cheng; Neoh, K. G.; Bai, Tiecheng; Kang, En‐Tang

doi:10.1002/cplu.201100007

Cited by 38 publications

(24 citation statements)

References 40 publications

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“…[43][44][45][46] CT is anticipated to occur most frequently in polymers with D-A structures. [47][48][49] Memory behaviors based on D-A polymers can be adequately tuned through the modification of the polymer structures.…”

Section: Mechanismmentioning

confidence: 99%

Solution-processable triarylamine-based high-performance polymers for resistive switching memory devices

Yen

Liou

2015

Polym J

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This review summarizes the most widely used mechanisms in high-performance polymeric resistive memory devices, such as charge transfer, space charge trapping and filament conduction. In addition, recent studies of functional high-performance polymers for memory device applications are reviewed, compared and differentiated based on the mechanisms and structural design methods used. By carefully designing the polymeric structure based on these systematically investigated switching mechanisms, almost all types of current memory characteristics can be reproduced, and these memory properties show extremely high endurance during long-term operation, which makes polyimides very suitable materials for memory applications. INTRODUCTION High-performance polymersToday, life without polymers is unimaginable. Polymers have become the major synthetic materials of the 21st century. High-performance polymers (HPPs) are particularly desirable. The synthesis and development of HPPs over the past 30 years have drawn the attention of many polymer scientists and investigators. These polymers generally possess excellent physical deformation resistance and chemical deterioration resistance at high temperatures over long periods of time. The quest for HPPs began in the late 1950s to meet the demands of the military, aerospace, machine-building and electronics industries, among many other industrial applications.Hill and Walker 1 first noted that the incorporation of aromatic segments into a polymer generally results in a notable increase in its thermal stability. For this reason, much of the research work has been directed toward aromatic compositions. Hence, HPPs usually tend to contain large numbers of aromatic units in their structures. Several of these aromatic HPPs have been used for commercial applications, such as aromatic polyamides, polyimides, polyesters, polysulfones, polytriphenylamine and heterocyclic polymers (Scheme 1). Aromatic polyamides (aramids) and polyimides, such as DuPont's Kevlar fiber and Kapton film, respectively, have been well known for a long time and constantly attract more interest than other HPPs for their useful properties, such as excellent thermal and oxidative stabilities, high mechanical strengths, low flammabilities and good chemical and radiation resistances. [2][3][4][5][6][7][8][9][10][11][12][13] However, the rigidity of the backbone and strong hydrogen bonding of these HPPs result in high melting or glass-transition

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Section: Mechanismmentioning

confidence: 99%

Solution-processable triarylamine-based high-performance polymers for resistive switching memory devices

Yen

Liou

2015

Polym J

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“…To obtain a better understanding of charge transfer switching mechanism, some study methods, such as density functional theory (DFT) calculations, UV/Vis absorption spectra, in situ fluorescence spectra and transmission electron microscope (TEM) images, could be utilized to analyze and explain the CT phenomenon . Charge transfer is expected to occur most frequently in the polymer with donor–acceptor structure . The memory characteristics based on the D–A polymer can be adjusted over a wide range through the modifications on polymer structures.…”

Section: Memory Effects and Mechanismsmentioning

confidence: 99%

Polymer‐Based Resistive Memory Materials and Devices

et al. 2013

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Due to the advantages of good scalability, flexibility, low cost, ease of processing, 3D-stacking capability, and large capacity for data storage, polymer-based resistive memories have been a promising alternative or supplementary devices to conventional inorganic semiconductor-based memory technology, and attracted significant scientific interest as a new and promising research field. In this review, we first introduced the general characteristics of the device structures and fabrication, memory effects, switching mechanisms, and effects of electrodes on memory properties associated with polymer-based resistive memory devices. Subsequently, the research progress concerning the use of single polymers or polymer composites as active materials for resistive memory devices has been summarized and discussed. In particular, we consider a rational approach to their design and discuss how to realize the excellent memory devices and understand the memory mechanisms. Finally, the current challenges and several possible future research directions in this field have also been discussed.

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“…[1][2][3][4][5][6][7][8][9][10] The electrical switching behaviors (i.e. resistance changes) are mainly controlled by the organic active materials in the two-terminated memory cell.…”

Section: Solution Processable Star-shaped Donor-acceptor (D-a) Conjugmentioning

confidence: 99%

Well-defined star-shaped donor–acceptor conjugated molecules for organic resistive memory devices

Zhang

et al. 2015

Chem. Commun.

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Solution processable star-shaped donor-acceptor (D-A) conjugated molecules (TPA-T-NI and TPA-3T-NI) with an electron-donating triphenylamine (TPA) core, three thienylene or terthienylene spacers, and three 1.8-naphthalimide (NI) electron-withdrawing end-groups are explored for the first time as charge storage materials for resistor-type memory devices owing to the efficient electric charge transfer and trapping.

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Electrical Bistability and WORM Memory Effects in Donor–Acceptor Polymers Based on Poly(N‐vinylcarbazole)

Cited by 38 publications

References 40 publications

Solution-processable triarylamine-based high-performance polymers for resistive switching memory devices

Solution-processable triarylamine-based high-performance polymers for resistive switching memory devices

Polymer‐Based Resistive Memory Materials and Devices

Well-defined star-shaped donor–acceptor conjugated molecules for organic resistive memory devices

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