Open Access System for Information Sharing

Login Library

 

Article
Cited 6 time in webofscience Cited 9 time in scopus
Metadata Downloads

Excellent synaptic behavior of lithium-based nano-ionic transistor based on optimal WO2.7 stoichiometry with high ion diffusivity

Title
Excellent synaptic behavior of lithium-based nano-ionic transistor based on optimal WO2.7 stoichiometry with high ion diffusivity
Authors
LEE, LEEJONGWONNIKAM REVANNATHSEOKJAE, LIMKWAK, MYOUNG HOONHwang, Hyunsang
Date Issued
2020-03
Publisher
IOP PUBLISHING LTD
Abstract
In this study, we introduce a lithium (Li) ion-based three-terminal (3-T) synapse device using WOx as a channel. Our study reveals a key stoichiometry of WO2.7 for excellent synaptic characteristics that is related to Li-ion diffusivity. The open-lattice structure formed by oxygen deficiency promoted Li-ion injection and diffusion. The optimized stoichiometry and improved Li-ion diffusivity were confirmed by x-ray photoelectron spectroscopy analysis and cyclic voltammetry, respectively. Furthermore, the transient conductance change that inevitably occurs in ion-based synaptic transistors was resolved by applying a two-step voltage pulse scheme. As a result, we achieved a symmetric and linear weight-update characteristic with reduced program/erase operation time.
URI
https://oasis.postech.ac.kr/handle/2014.oak/105620
ISSN
0957-4484
Article Type
Article
Citation
NANOTECHNOLOGY, vol. 31, no. 23, 2020-03
Files in This Item:
There are no files associated with this item.

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher

황현상HWANG, HYUNSANG
Dept of Materials Science & Enginrg
Read more

Views & Downloads

Browse