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Cited 159 time in webofscience Cited 162 time in scopus
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Organic core-sheath nanowire artificial synapses with femtojoule energy consumption

Title
Organic core-sheath nanowire artificial synapses with femtojoule energy consumption
Authors
Wentao XuSung-Yong MinHyunsang HwangTae-Woo Lee
Date Issued
Jun-2016
Publisher
American Association for the Advancement of Science
Abstract
Emulation of biological synapses is an important step toward construction of large-scale brain-inspired electronics. Despite remarkable progress in emulating synaptic functions, current synaptic devices still consume energy that is orders of magnitude greater than do biological synapses (similar to 10 fJ per synaptic event). Reduction of energy consumption of artificial synapses remains a difficult challenge. We report organic nanowire (ONW) synaptic transistors (STs) that emulate the important working principles of a biological synapse. The ONWs emulate the morphology of nerve fibers. With a core-sheath-structured ONW active channel and a well-confined 300-nm channel length obtained using ONW lithography, similar to 1.23 fJ per synaptic event for individual ONW was attained, which rivals that of biological synapses. The ONW STs provide a significant step toward realizing low-energy-consuming artificial intelligent electronics and open new approaches to assembling soft neuromorphic systems with nanometer feature size.
URI
http://oasis.postech.ac.kr/handle/2014.oak/39261
ISSN
2375-2548
Article Type
Article
Citation
Science advances, vol. 2, no. 6, 2016-06
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황현상HWANG, HYUNSANG
Dept of Materials Science & Enginrg
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