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Fully Printed Flexible Crossbar Memory Devices with Tip‐Enhanced Micro/Nanostructures
Author(s) -
Pan Qi,
Su Meng,
Zhang Zeying,
Cai Zheren,
Li Yifan,
Huang Zhandong,
Qian Xin,
Hu Xiaotian,
Li Fengyu,
Dong Huanli,
Song Yanlin
Publication year - 2019
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.201900131
Subject(s) - materials science , crossbar switch , fabrication , actuator , flexible electronics , nanotechnology , optoelectronics , 3d printing , electronics , 3d printed , electrode , radius of curvature , curvature , computer science , electrical engineering , composite material , alternative medicine , mathematics , chemistry , artificial intelligence , mean curvature , pathology , mean curvature flow , engineering , telecommunications , geometry , medicine , biomedical engineering
Flexible memory devices with optimal tip‐enhanced structures and high density are necessary for data storage devices. Printed electronics combine an efficient manufacturing approach with diverse materials adoptability and multidimensional patterns. However, the precision of the printed structures and the nonuniform of the interfaces restrict the storage density and performance severely. A full printing strategy to fabricate crossbar memory devices with triangular prism–structured Ag microwire electrodes and Ag/silk fibroin conformal interlayers is reported. Based on tip‐enhanced microelectrodes and flexible function layers, these crossbar memory devices show a high I ON / I OFF ratio (10 6 at 1 V) and sufficient retention time (>10 4 s) under 5 mm curvature radius bending. Devices with 2.5 × 10 5 bits cm −2 storage density can be printed (10 3 higher than previously reported results), which enables efficient implement of pattern matching in visual display. This full printing strategy offers efficient fabrication for highly integrated flexible memories and 3D multilayer microdevices.