Mist-CVD-derived Hf0.55Zr0.45O2 ferroelectric thin films post-annealed by rapid thermal annealing

نویسندگان

چکیده

We have newly applied Rapid Thermal Annealing (RTA) for the post-annealing of mist chemical-vapor-deposition (CVD)-derived Hf1−xZrxO2 (HZO) thin films. A ferroelectric polarization-electric field (P–E) curve was confirmed typically with noticeable polarization reversal currents. These properties HZO films provided quantitative estimation Pr and Ec ∼20 µC/cm2 1–1.5 MV/cm, respectively, compared to those reported from other growth methods, such as atomic-layer-deposition (ALD). It revealed that background leakage should be further reduced in a mist-CVD film by ALD recently reported. The origin strongly related oxygen vacancy (Vo) generated near HZO/bottom electrode interface. Nonetheless, it found effective use atmospheric pressure air or post-RTA process reducing leakage. In general, endurance behaviors similar samples prepared methods both “wake-up” “fatigue” phenomena, showing endured up 2 × 109 counts. Finally, we expect would become candidate fabricating large-scale integration-oriented devices due intrinsic merits method.

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ژورنال

عنوان ژورنال: AIP Advances

سال: 2023

ISSN: ['2158-3226']

DOI: https://doi.org/10.1063/5.0134375