Proton Conductor Gated Synaptic Transistor Based on Transparent IGZO for Realizing Electrical and UV Light Stimulus
Synaptic transistors mimicking the biological synapse's short term plasticity and short-term memory property were demonstrated using the amorphous indium-gallium-zinc oxide channel in combination with the nanogranular SiO<sub>2</sub> as the gate oxide. The lowest energy consumption...
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doaj-1bc4cde03bc540888e980f361c96f3952021-03-29T18:48:32ZengIEEEIEEE Journal of the Electron Devices Society2168-67342019-01-017384510.1109/JEDS.2018.28759768491312Proton Conductor Gated Synaptic Transistor Based on Transparent IGZO for Realizing Electrical and UV Light StimulusWeijun Cheng0https://orcid.org/0000-0002-7205-3801Renrong Liang1He Tian2https://orcid.org/0000-0001-7328-2182Chuanchuan Sun3https://orcid.org/0000-0001-6561-6007Chunsheng Jiang4https://orcid.org/0000-0001-6350-9750Xiawa Wang5Jing Wang6Tian-Ling Ren7https://orcid.org/0000-0002-7330-0544Jun Xu8Institute of Microelectronics, Tsinghua University, Beijing, ChinaInstitute of Microelectronics, Tsinghua University, Beijing, ChinaInstitute of Microelectronics, Tsinghua University, Beijing, ChinaBeijing Institute of Control Engineering, Beijing, ChinaMicrosystem and Terahertz Research Center, China Academy of Engineering Physics, Chengdu, ChinaInstitute of Microelectronics, Tsinghua University, Beijing, ChinaInstitute of Microelectronics, Tsinghua University, Beijing, ChinaInstitute of Microelectronics, Tsinghua University, Beijing, ChinaInstitute of Microelectronics, Tsinghua University, Beijing, ChinaSynaptic transistors mimicking the biological synapse's short term plasticity and short-term memory property were demonstrated using the amorphous indium-gallium-zinc oxide channel in combination with the nanogranular SiO<sub>2</sub> as the gate oxide. The lowest energy consumption was ~1.08 pJ per pulse activity and the operating voltage was within 100 mV. The device's plasticity and memory characteristics can be explained by the movement of protons in the insulating layer. The proton relaxation was revealed by two ways of dual sweeping: continuous and discontinuous sweepings. We observed that the excitatory postsynaptic current (EPSC) rose as the voltage decreased anomaly during the backward sweeping process. In the electrical stimulus, both the short-term potentiation and depression were observed for this proposed device. The amplitude of the EPSC changed with the pulse number following a saturating exponential function. For the electrical stimulus under constant illumination, the UV light wavelength, intensity and duration time were found to have little effect on the paired pulse facilitation. While in the light stimulus, the light frequency promoted the paired pulse facilitation and had more effect on the synapse's plasticity than the other light pulse parameters including intensity, numbers and width.https://ieeexplore.ieee.org/document/8491312/Synaptic transistortransparent oxideIGZOnanogranular SiO₂UV light |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Weijun Cheng Renrong Liang He Tian Chuanchuan Sun Chunsheng Jiang Xiawa Wang Jing Wang Tian-Ling Ren Jun Xu |
spellingShingle |
Weijun Cheng Renrong Liang He Tian Chuanchuan Sun Chunsheng Jiang Xiawa Wang Jing Wang Tian-Ling Ren Jun Xu Proton Conductor Gated Synaptic Transistor Based on Transparent IGZO for Realizing Electrical and UV Light Stimulus IEEE Journal of the Electron Devices Society Synaptic transistor transparent oxide IGZO nanogranular SiO₂ UV light |
author_facet |
Weijun Cheng Renrong Liang He Tian Chuanchuan Sun Chunsheng Jiang Xiawa Wang Jing Wang Tian-Ling Ren Jun Xu |
author_sort |
Weijun Cheng |
title |
Proton Conductor Gated Synaptic Transistor Based on Transparent IGZO for Realizing Electrical and UV Light Stimulus |
title_short |
Proton Conductor Gated Synaptic Transistor Based on Transparent IGZO for Realizing Electrical and UV Light Stimulus |
title_full |
Proton Conductor Gated Synaptic Transistor Based on Transparent IGZO for Realizing Electrical and UV Light Stimulus |
title_fullStr |
Proton Conductor Gated Synaptic Transistor Based on Transparent IGZO for Realizing Electrical and UV Light Stimulus |
title_full_unstemmed |
Proton Conductor Gated Synaptic Transistor Based on Transparent IGZO for Realizing Electrical and UV Light Stimulus |
title_sort |
proton conductor gated synaptic transistor based on transparent igzo for realizing electrical and uv light stimulus |
publisher |
IEEE |
series |
IEEE Journal of the Electron Devices Society |
issn |
2168-6734 |
publishDate |
2019-01-01 |
description |
Synaptic transistors mimicking the biological synapse's short term plasticity and short-term memory property were demonstrated using the amorphous indium-gallium-zinc oxide channel in combination with the nanogranular SiO<sub>2</sub> as the gate oxide. The lowest energy consumption was ~1.08 pJ per pulse activity and the operating voltage was within 100 mV. The device's plasticity and memory characteristics can be explained by the movement of protons in the insulating layer. The proton relaxation was revealed by two ways of dual sweeping: continuous and discontinuous sweepings. We observed that the excitatory postsynaptic current (EPSC) rose as the voltage decreased anomaly during the backward sweeping process. In the electrical stimulus, both the short-term potentiation and depression were observed for this proposed device. The amplitude of the EPSC changed with the pulse number following a saturating exponential function. For the electrical stimulus under constant illumination, the UV light wavelength, intensity and duration time were found to have little effect on the paired pulse facilitation. While in the light stimulus, the light frequency promoted the paired pulse facilitation and had more effect on the synapse's plasticity than the other light pulse parameters including intensity, numbers and width. |
topic |
Synaptic transistor transparent oxide IGZO nanogranular SiO₂ UV light |
url |
https://ieeexplore.ieee.org/document/8491312/ |
work_keys_str_mv |
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