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Non-volatile organic memory with sub-millimetre bending radius
- Title
- Non-volatile organic memory with sub-millimetre bending radius
- Authors
- Kim, Richard Hahnkee; Kim, Hae Jin; Bae, Insung; Hwang, Sun Kak; Velusamy, Dhinesh Babu; Cho, Suk Man; Takaishi, Kazuto; Muto, Tsuyoshi; Hashizume, Daisuke; Uchiyama, Masanobu; Andre, Pascal; Mathevet, Fabrice; Heinrich, Benoit; Aoyama, Tetsuya; Kim, Dae-Eun; Lee, Hyungsuk; Ribierre, Jean-Charles; Park, Cheolmin
- Ewha Authors
- Jean Charles Ribierre
- Issue Date
- 2014
- Journal Title
- NATURE COMMUNICATIONS
- ISSN
- 2041-1723
- Citation
- NATURE COMMUNICATIONS vol. 5
- Publisher
- NATURE PUBLISHING GROUP
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- High-performance non-volatile memory that can operate under various mechanical deformations such as bending and folding is in great demand for the future smart wearable and foldable electronics. Here we demonstrate non-volatile solution-processed ferroelectric organic field-effect transistor memories operating in p- and n- type dual mode, with excellent mechanical flexibility. Our devices contain a ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) thin insulator layer and use a quinoidal oligothiophene derivative (QQT(CN)4) as organic semiconductor. Our dual-mode field-effect devices are highly reliable with data retention and endurance of > 6,000 s and 100 cycles, respectively, even after 1,000 bending cycles at both extreme bending radii as low as 500 mu m and with sharp folding involving inelastic deformation of the device. Nano-indentation and nano scratch studies are performed to characterize the mechanical properties of organic layers and understand the crucial role played by QQT(CN)4 on the mechanical flexibility of our devices.
- DOI
- 10.1038/ncomms4583
- Appears in Collections:
- 자연과학대학 > 물리학전공 > Journal papers
- Files in This Item:
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Non-volatile organic memory with sub-millimetre bending radius.pdf(2.99 MB)
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