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