Web-drive based source measure unit for automated evaluations of ionic liquid-gated MoS2 transistors
- Authors
- Park, So Jeong; Jeon, Dae-Young; Moon, Young-Sun; Park, Il-Hoo; Kim, Gyu-Tae
- Issue Date
- 12월-2019
- Publisher
- AMER INST PHYSICS
- Citation
- REVIEW OF SCIENTIFIC INSTRUMENTS, v.90, no.12
- Indexed
- SCIE
SCOPUS
- Journal Title
- REVIEW OF SCIENTIFIC INSTRUMENTS
- Volume
- 90
- Number
- 12
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/61339
- DOI
- 10.1063/1.5111724
- ISSN
- 0034-6748
- Abstract
- For reliable characterization of two-dimensional semiconducting devices and continuous monitoring in toxic environments, construction of an electrical characterization-based massive database using a portable source measure unit (SMU) with a WiFi connection is desirable. The web-drive based SMU using a microcontroller developed here exhibits superior voltage source performance (similar to 1 mV) and voltage/current measurement (similar to 0.15 mV/similar to 1 nA) capabilities, with automatic construction of a measurement database for online storage using web-drive based software, which can be applied for reliable electrical characterization. Electrical characterization of ionic liquid-gated MoS2 transistors was achieved with the designed SMU and showed results comparable with those obtained using a commercial semiconductor characterization system. Ionic liquid-gated transistors only require a small gate bias (similar to 1.5 V) for on-state operation because of the high gate capacitance originating from the thin dielectric layer constructed of an electrical double layer, which makes the device a promising candidate for low power consumption applications. Finally, several electrical parameters of the ionic liquid-gated transistor were extracted from the datasets and uploaded to the web-drive.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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