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High-performance piezoelectric energy harvesting in amorphous perovskite thin films deposited directly on a plastic substrate

Engineering and Technology

High-performance piezoelectric energy harvesting in amorphous perovskite thin films deposited directly on a plastic substrate

J. Han, S. H. Park, et al.

Discover groundbreaking advancements in flexible amorphous thin-film energy harvesters utilizing perovskite CaCu3Ti4O12 (CCTO) thin films on plastic substrates, resulting in an impressive output voltage of -38.7 V and power density of -2.8 × 106 μW cm-3. This innovative research was conducted by Ju Han, Sung Hyun Park, Ye Seul Jung, and Yong Soo Cho.

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Playback language: English
Abstract
This paper introduces flexible amorphous thin-film energy harvesters based on perovskite CaCu3Ti4O12 (CCTO) thin films on a plastic substrate. Room-temperature sputtering of CCTO thin films allows the use of plastic substrates, resulting in an output voltage and power density of -38.7 V and -2.8 × 106 μW cm-3, respectively. The excellent electromechanical energy conversion is attributed to localized permanent dipoles of TiO6 octahedra and a lowered dielectric constant in the amorphous state.
Publisher
Nature Communications
Published On
May 16, 2024
Authors
Ju Han, Sung Hyun Park, Ye Seul Jung, Yong Soo Cho
Tags
energy harvesters
perovskite
amorphous thin films
CCTO
plastic substrate
electromechanical conversion
dielectric properties

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