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Low-temperature processed beta-phase In2Se3 ferroelectric semiconductor thin film transistors

Journal Article · · 2D Materials

As scaling becomes increasingly difficult, there is growing interest in vertical or three-dimensional stacking of transistors and especially memory. Ferroelectric semiconductor field effect transistors can be key enablers to improve energy efficiency and overall chip and memory performance. In this work, low-temperature processed, back-end-of-the-line compatible transistors were demonstrated by depositing a layered chalcogenide ferroelectric semiconductor, beta-phase In2Se3, at temperature as low as 400 °C. Top gate n-channel In2Se3thin film transistors were fabricated with field-effect mobility ~1 cm2V-1s-1, and simple polarization switching based memory results are presented.

Research Organization:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0020145; SC0021118
OSTI ID:
1979457
Journal Information:
2D Materials, Vol. 9, Issue 2; ISSN 2053-1583
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English

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