High performance black phosphorus field-effect transistors with vacuum-annealed low-resistance Ohmic contact

Hyunik Park, Jinho Bae, Ji Hyun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Layered black phosphorus (BP) exhibits desirable properties for nano-(opto)electronic device applications such as atomically thin body, direct bandgap (0.3 eV for bulk and 2.0 eV for monolayer), high carrier mobility of 1,000 cm2/V·s, and current on/off ratio of 105, which trigger intensive studies since its rediscovery. [1]-[3] However, high contact resistance caused by the formation of Schottky barrier and contamination at the metal-layered BP interface poses challenges in applying BP in device applications.[4] This problem becomes more serious for short-channel devices as the contact resistance is more dominant than the channel resistance, thereby, the device performance is limited by the contact resistance. Thermal annealing has been used as a promising technique for improving the contact properties in electronic devices. However, BP is vulnerable to the ambient molecules, especially in the elevated temperature, and deliberate studies of the thermal annealing on BP-based electronic devices are required. Here, the effect of post-fabrication vacuum annealing on the performance of BP field-effect transistor (FET) was investigated.

Original languageEnglish
Title of host publication2018 76th Device Research Conference, DRC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Volume2018-June
ISBN (Print)9781538630280
DOIs
Publication statusPublished - 2018 Aug 20
Event76th Device Research Conference, DRC 2018 - Santa Barbara, United States
Duration: 2018 Jun 242018 Jun 27

Other

Other76th Device Research Conference, DRC 2018
CountryUnited States
CitySanta Barbara
Period18/6/2418/6/27

Fingerprint

Ohmic contacts
Field effect transistors
Phosphorus
Vacuum
Contact resistance
Annealing
Carrier mobility
Optoelectronic devices
Monolayers
Energy gap
Contamination
Fabrication
Molecules
Metals

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Park, H., Bae, J., & Kim, J. H. (2018). High performance black phosphorus field-effect transistors with vacuum-annealed low-resistance Ohmic contact. In 2018 76th Device Research Conference, DRC 2018 (Vol. 2018-June). [8442273] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/DRC.2018.8442273

High performance black phosphorus field-effect transistors with vacuum-annealed low-resistance Ohmic contact. / Park, Hyunik; Bae, Jinho; Kim, Ji Hyun.

2018 76th Device Research Conference, DRC 2018. Vol. 2018-June Institute of Electrical and Electronics Engineers Inc., 2018. 8442273.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Park, H, Bae, J & Kim, JH 2018, High performance black phosphorus field-effect transistors with vacuum-annealed low-resistance Ohmic contact. in 2018 76th Device Research Conference, DRC 2018. vol. 2018-June, 8442273, Institute of Electrical and Electronics Engineers Inc., 76th Device Research Conference, DRC 2018, Santa Barbara, United States, 18/6/24. https://doi.org/10.1109/DRC.2018.8442273
Park H, Bae J, Kim JH. High performance black phosphorus field-effect transistors with vacuum-annealed low-resistance Ohmic contact. In 2018 76th Device Research Conference, DRC 2018. Vol. 2018-June. Institute of Electrical and Electronics Engineers Inc. 2018. 8442273 https://doi.org/10.1109/DRC.2018.8442273
Park, Hyunik ; Bae, Jinho ; Kim, Ji Hyun. / High performance black phosphorus field-effect transistors with vacuum-annealed low-resistance Ohmic contact. 2018 76th Device Research Conference, DRC 2018. Vol. 2018-June Institute of Electrical and Electronics Engineers Inc., 2018.
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