Fabrication of Vertical Synaptic Devices

Processing solvents such as acetone, chloroform, and 2-propanol were purchased from Sigma-Aldrich. P3HT (regioregular, average Mn: 54,000 to 75,000), For photo-patternable ion gel, poly(ethylene glycol)diacrylate monomer and 2-hydroxy-2-methylpropiophenone were also purchased from Sigma-Aldrich. 1-Ethyl-3-methylimidazolium bis(trifluoromethyl sulfonyl)imide ionic liquid was purchased from TCI Chemicals. The azide cross-linker 2Bx was synthesized and confirmed by the nuclear magnetic resonance spectroscopy as previously reported (42 (link), 46 (link)–48 (link)). The electrical properties of the vertical synaptic device and logic gates were measured using a Keithley 4200 electrometer.

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Choi Y., Ho D.H., Kim S., Choi Y.J., Roe D.G., Kwak I.C., Min J., Han H., Gao W, & Cho J.H. (2023). Physically defined long-term and short-term synapses for the development of reconfigurable analog-type operators capable of performing health care tasks. Science Advances, 9(27), eadg5946.

Publication 2023

acetone chloroform 2-propanol 2-hydroxy-2-methylpropiophenone

1 ethyl 3 methylimidazolium 2 hydroxy 2 methylpropiophenone 2 propanol Acetone Azide Chloroform Device Electrical Imide Ionic liquid Nuclear magnetic resonance spectroscopy Poly ethylene glycol diacrylate Solvents

Corresponding Organization : Yonsei University

Other organizations : Virginia Tech, Sungkyunkwan University, Pennsylvania State University

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Variable analysis

independent variables

Solvents (acetone, chloroform, 2-propanol)
P3HT (regioregular, average Mn: 54,000 to 75,000)
Poly(ethylene glycol)diacrylate monomer
2-hydroxy-2-methylpropiophenone
1-Ethyl-3-methylimidazolium bis(trifluoromethyl sulfonyl)imide ionic liquid
Azide cross-linker 2Bx

dependent variables

Electrical properties of the vertical synaptic device and logic gates

control variables

Keithley 4200 electrometer used for electrical property measurements

controls

No positive or negative controls explicitly mentioned

Annotations

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