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One‐Step Fabrication of Bio‐Compatible Coordination Complex Film on Diverse Substrates for Ternary Flexible Memory
Author(s) -
Sun WuJi,
Zhao YongYan,
Zhou Jin,
Cheng XueFeng,
He JingHui,
Lu JianMei
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201806420
Subject(s) - materials science , polyethylene terephthalate , ternary operation , fabrication , layer (electronics) , polyimide , substrate (aquarium) , shape memory polymer , nanotechnology , active layer , coordination polymer , shape memory alloy , chemical engineering , polymer , composite material , computer science , oceanography , alternative medicine , pathology , geology , programming language , engineering , thin film transistor , medicine
Recently, resistance random access memories (RRAMs) have been studied extensively, because the demand for information storage is increasing. However, it remains challenging to obtain a flexible device because the active materials involved need to be nontoxic, nonpolluting, distortion‐tolerable, and biodegradable as well adhesive to diverse flexible substrates. In this paper, tannic acid (TA) and an iron ion (Fe III ) coordination complex were employed as the active layer in a sandwich‐like (Al/active layer/substrate) device to achieve memory performance. A nontoxic, biocompatible TA‐Fe III coordination complex was synthesized by a one‐step self‐assembly solution method. The retention time of the TA‐Fe III memory performance was up to 15 000 s, the yield up to 53 %. Furthermore, the TA‐Fe III coordination complex can form a high‐quality film and shows stable ternary memory behavior on various flexible substrates, such as polyethylene terephthalate (PET), polyimide (PI), printer paper, and leaf. The device can be degraded by immersing it in vinegar solution. Our work will broaden the application of organic coordination complexes in flexible memory devices with diverse substrates.