https://scholars.lib.ntu.edu.tw/handle/123456789/598273
Title: | Highly Thermal Stable Polyimides Applied in Flexible Resistive Memory | Authors: | Gao J.-Y Chen C.-K Lin Y.-C Kuo C.-C Chen W.-C. WEN-CHANG CHEN |
Keywords: | donor–acceptor;flexible electronics;polyimide;resistor-type memory;write-once-read-many (WORM) type memory;Amines;Aromatic compounds;Charge transfer;Glass transition;Polyimides;Thermal expansion;Hexafluoroisopropylidene;High-glass transition temperatures;Low coefficient of thermal expansions;Mechanical durability;ON/OFF current ratio;Resistive memory;Thermal and mechanical properties;Write-once-read-many;Flexible electronics | Issue Date: | 2021 | Journal Volume: | 306 | Journal Issue: | 12 | Source: | Macromolecular Materials and Engineering | Abstract: | Flexible memory devices are one of the most crucial elements in the wearable electronics. In this work, polyimides (PIs)-based flexible resistive memory devices with an excellent thermal and mechanical durability are demonstrated. Four kinds of functional PIs are derived from the heterocyclic diamines including 2,6-diaminodibenzo-p-dioxin (OODA) and 2,6-diaminothianthrene, and dianhydrides including 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) and 3,3′,4,4′-biphenyltetracarboxylic dianhydride. PI with diamine of OODA and dianhydride of 6FDA (PI(OODA_6FDA)) possesses outstanding thermal and mechanical properties with a high glass transition temperature of 352?°C, a low coefficient of thermal expansion of 28.1?ppm K?1, and a high elongation at break of 10%. In addition, PI(OODA_6FDA)-based memory shows write-once-read-many behavior with a high on/off current ratio of 106 and a stable data retention, attributed to the donor–acceptor charge transfer between the polymer chains. The retained current levels at a low resistive state can be observed even with thermal treatment at 200?°C for 24 h or 1000 times cyclic bending at a bending radius of 5?mm. These results demonstrate the potential of heterocyclic PIs for flexible resistive memory. ? 2021 Wiley-VCH GmbH |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113297106&doi=10.1002%2fmame.202100512&partnerID=40&md5=c000e0bd6edbefb240cc8f9df18c4fa2 https://scholars.lib.ntu.edu.tw/handle/123456789/598273 |
ISSN: | 14387492 | DOI: | 10.1002/mame.202100512 |
Appears in Collections: | 化學工程學系 |
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