Ultra-Flexible Nonvolatile Memory

Nature, Scientific Reports has published an article written by Ye Zhou, Su-Ting Han, Yan Yan, Li Zhou, Long-Biao Huang, Jiaqing Zhuang, Department of Physics and Materials Science City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong SAR , Prashant Sonar, School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), GPO Box 2434, Brisbane, QLD 4001, Australia, and V. A. L. Roy, Department of Physics and Materials Science City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong SAR.

(a) Illustration of the fabrication of the ultra-flexible memory device.
(b) The chemical structures of PMMA and DPP-TNT.
(c) Tapping mode AFM image of the PMMA:DPP-TNT film.
(d) UV–visible spectrum of PMMA:DPP-TNT film.
Inset: Optical image of the fabricated ultra-flexible memory.

Click to enlarge

Abstract: “Flexible memory cell array based on high mobility donor-acceptor diketopyrrolopyrrole polymer has been demonstrated. The memory cell exhibits low read voltage, high cell-to-cell uniformity and good mechanical flexibility, and has reliable retention and endurance memory performance. The electrical properties of the memory devices are systematically investigated and modeled. Our results suggest that the polymer blends provide an important step towards high-density flexible nonvolatile memory devices.”