Ultrasensitive artificial synapse based on conjugated polyelectrolyte

Wentao Xu, Thanh Luan Nguyen, Young Tae Kim, Christoph Wolf, Raphael Pfattner, Jeffrey Lopez, Byeong Gyu Chae, Sung Il Kim, Moo Yeol Lee, Eul Yong Shin, Yong Young Noh, Joon Hak Oh, Hyunsang Hwang, Chan Gyung Park, Han Young Woo, Tae Woo Lee

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Emulating essential synaptic working principles using a single electronic device has been an important research field in recent years. However, achieving sensitivity and energy consumption comparable to biological synapses in these electronic devices is still a difficult challenge. Here, we report the fabrication of conjugated polyelectrolyte (CPE)-based artificial synapse, which emulates important synaptic functions such as paired-pulse facilitation (PPF), spike-timing dependent plasticity (STDP) and spiking rate dependent plasticity (SRDP). The device exhibits superior sensitivity to external stimuli andlow-energy consumption. Ultrahigh sensitivity and low-energy consumption are key requirements for building up brain-inspired artificial systems and efficient electronic-biological interface. The excellent synaptic performance originated from (i) a hybrid working mechanism that ensured the realization of both short-term and long-term plasticity in the same device, and (ii) the mobile-ion rich CPE thin film that mediate migration of abundant ions analogous to a synaptic cleft. Development of this type of artificial synapse is both scientifically and technologically important for construction of ultrasensitive highly-energy efficient and soft neuromorphic electronics.

Original languageEnglish
Pages (from-to)575-581
Number of pages7
JournalNano Energy
Volume48
DOIs
Publication statusPublished - 2018 Jun 1

Fingerprint

Polyelectrolytes
Plasticity
Energy utilization
Ions
Brain
Electronic equipment
Fabrication
Thin films

Keywords

  • Dipole reorientation
  • Ion migration
  • Memory
  • Neuromorphic devices
  • Sensitivity

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

Cite this

Xu, W., Nguyen, T. L., Kim, Y. T., Wolf, C., Pfattner, R., Lopez, J., ... Lee, T. W. (2018). Ultrasensitive artificial synapse based on conjugated polyelectrolyte. Nano Energy, 48, 575-581. https://doi.org/10.1016/j.nanoen.2018.02.058

Ultrasensitive artificial synapse based on conjugated polyelectrolyte. / Xu, Wentao; Nguyen, Thanh Luan; Kim, Young Tae; Wolf, Christoph; Pfattner, Raphael; Lopez, Jeffrey; Chae, Byeong Gyu; Kim, Sung Il; Lee, Moo Yeol; Shin, Eul Yong; Noh, Yong Young; Oh, Joon Hak; Hwang, Hyunsang; Park, Chan Gyung; Woo, Han Young; Lee, Tae Woo.

In: Nano Energy, Vol. 48, 01.06.2018, p. 575-581.

Research output: Contribution to journalArticle

Xu, W, Nguyen, TL, Kim, YT, Wolf, C, Pfattner, R, Lopez, J, Chae, BG, Kim, SI, Lee, MY, Shin, EY, Noh, YY, Oh, JH, Hwang, H, Park, CG, Woo, HY & Lee, TW 2018, 'Ultrasensitive artificial synapse based on conjugated polyelectrolyte', Nano Energy, vol. 48, pp. 575-581. https://doi.org/10.1016/j.nanoen.2018.02.058
Xu W, Nguyen TL, Kim YT, Wolf C, Pfattner R, Lopez J et al. Ultrasensitive artificial synapse based on conjugated polyelectrolyte. Nano Energy. 2018 Jun 1;48:575-581. https://doi.org/10.1016/j.nanoen.2018.02.058
Xu, Wentao ; Nguyen, Thanh Luan ; Kim, Young Tae ; Wolf, Christoph ; Pfattner, Raphael ; Lopez, Jeffrey ; Chae, Byeong Gyu ; Kim, Sung Il ; Lee, Moo Yeol ; Shin, Eul Yong ; Noh, Yong Young ; Oh, Joon Hak ; Hwang, Hyunsang ; Park, Chan Gyung ; Woo, Han Young ; Lee, Tae Woo. / Ultrasensitive artificial synapse based on conjugated polyelectrolyte. In: Nano Energy. 2018 ; Vol. 48. pp. 575-581.
@article{34a4f1c46e2842879ee764d008051f82,
title = "Ultrasensitive artificial synapse based on conjugated polyelectrolyte",
abstract = "Emulating essential synaptic working principles using a single electronic device has been an important research field in recent years. However, achieving sensitivity and energy consumption comparable to biological synapses in these electronic devices is still a difficult challenge. Here, we report the fabrication of conjugated polyelectrolyte (CPE)-based artificial synapse, which emulates important synaptic functions such as paired-pulse facilitation (PPF), spike-timing dependent plasticity (STDP) and spiking rate dependent plasticity (SRDP). The device exhibits superior sensitivity to external stimuli andlow-energy consumption. Ultrahigh sensitivity and low-energy consumption are key requirements for building up brain-inspired artificial systems and efficient electronic-biological interface. The excellent synaptic performance originated from (i) a hybrid working mechanism that ensured the realization of both short-term and long-term plasticity in the same device, and (ii) the mobile-ion rich CPE thin film that mediate migration of abundant ions analogous to a synaptic cleft. Development of this type of artificial synapse is both scientifically and technologically important for construction of ultrasensitive highly-energy efficient and soft neuromorphic electronics.",
keywords = "Dipole reorientation, Ion migration, Memory, Neuromorphic devices, Sensitivity",
author = "Wentao Xu and Nguyen, {Thanh Luan} and Kim, {Young Tae} and Christoph Wolf and Raphael Pfattner and Jeffrey Lopez and Chae, {Byeong Gyu} and Kim, {Sung Il} and Lee, {Moo Yeol} and Shin, {Eul Yong} and Noh, {Yong Young} and Oh, {Joon Hak} and Hyunsang Hwang and Park, {Chan Gyung} and Woo, {Han Young} and Lee, {Tae Woo}",
year = "2018",
month = "6",
day = "1",
doi = "10.1016/j.nanoen.2018.02.058",
language = "English",
volume = "48",
pages = "575--581",
journal = "Nano Energy",
issn = "2211-2855",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Ultrasensitive artificial synapse based on conjugated polyelectrolyte

AU - Xu, Wentao

AU - Nguyen, Thanh Luan

AU - Kim, Young Tae

AU - Wolf, Christoph

AU - Pfattner, Raphael

AU - Lopez, Jeffrey

AU - Chae, Byeong Gyu

AU - Kim, Sung Il

AU - Lee, Moo Yeol

AU - Shin, Eul Yong

AU - Noh, Yong Young

AU - Oh, Joon Hak

AU - Hwang, Hyunsang

AU - Park, Chan Gyung

AU - Woo, Han Young

AU - Lee, Tae Woo

PY - 2018/6/1

Y1 - 2018/6/1

N2 - Emulating essential synaptic working principles using a single electronic device has been an important research field in recent years. However, achieving sensitivity and energy consumption comparable to biological synapses in these electronic devices is still a difficult challenge. Here, we report the fabrication of conjugated polyelectrolyte (CPE)-based artificial synapse, which emulates important synaptic functions such as paired-pulse facilitation (PPF), spike-timing dependent plasticity (STDP) and spiking rate dependent plasticity (SRDP). The device exhibits superior sensitivity to external stimuli andlow-energy consumption. Ultrahigh sensitivity and low-energy consumption are key requirements for building up brain-inspired artificial systems and efficient electronic-biological interface. The excellent synaptic performance originated from (i) a hybrid working mechanism that ensured the realization of both short-term and long-term plasticity in the same device, and (ii) the mobile-ion rich CPE thin film that mediate migration of abundant ions analogous to a synaptic cleft. Development of this type of artificial synapse is both scientifically and technologically important for construction of ultrasensitive highly-energy efficient and soft neuromorphic electronics.

AB - Emulating essential synaptic working principles using a single electronic device has been an important research field in recent years. However, achieving sensitivity and energy consumption comparable to biological synapses in these electronic devices is still a difficult challenge. Here, we report the fabrication of conjugated polyelectrolyte (CPE)-based artificial synapse, which emulates important synaptic functions such as paired-pulse facilitation (PPF), spike-timing dependent plasticity (STDP) and spiking rate dependent plasticity (SRDP). The device exhibits superior sensitivity to external stimuli andlow-energy consumption. Ultrahigh sensitivity and low-energy consumption are key requirements for building up brain-inspired artificial systems and efficient electronic-biological interface. The excellent synaptic performance originated from (i) a hybrid working mechanism that ensured the realization of both short-term and long-term plasticity in the same device, and (ii) the mobile-ion rich CPE thin film that mediate migration of abundant ions analogous to a synaptic cleft. Development of this type of artificial synapse is both scientifically and technologically important for construction of ultrasensitive highly-energy efficient and soft neuromorphic electronics.

KW - Dipole reorientation

KW - Ion migration

KW - Memory

KW - Neuromorphic devices

KW - Sensitivity

UR - http://www.scopus.com/inward/record.url?scp=85045418837&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85045418837&partnerID=8YFLogxK

U2 - 10.1016/j.nanoen.2018.02.058

DO - 10.1016/j.nanoen.2018.02.058

M3 - Article

VL - 48

SP - 575

EP - 581

JO - Nano Energy

JF - Nano Energy

SN - 2211-2855

ER -