A bimorph lithium niobate PMUT reaches 775 kHz with Q of 200, 6.4% k2, 65 nm/V transmit efficiency, and stable performance to 600°C with survival to 900°C.
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cond-mat.mtrl-sci 2years
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BaTiO3 nanorods form curvature-induced domain stripes above a critical angle to minimize elastic energy, enabled by controlled OH- incorporation during synthesis that produces c/a ratios of 1.013-1.014.
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Bimorph Lithium Niobate Piezoelectric Micromachined Ultrasonic Transducers
A bimorph lithium niobate PMUT reaches 775 kHz with Q of 200, 6.4% k2, 65 nm/V transmit efficiency, and stable performance to 600°C with survival to 900°C.
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Strain-Gradient and Curvature-Induced Changes in Domain Morphology of BaTiO3 Nanorods: Experimental and Theoretical Studies
BaTiO3 nanorods form curvature-induced domain stripes above a critical angle to minimize elastic energy, enabled by controlled OH- incorporation during synthesis that produces c/a ratios of 1.013-1.014.