Highly Transparent Lead-Free Piezoelectric Haptic Device
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866915284925808640 |
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| author | Song, Longfei Glinsek, Sebastjan Alluri, Nagamalleswara Rao Kovacova, Veronika Melchiorr, Michele Martinez, Alfredo Blazquez Mandal, Barnik Cardoletti, Juliette Defay, Emmanuel |
| author_facet | Song, Longfei Glinsek, Sebastjan Alluri, Nagamalleswara Rao Kovacova, Veronika Melchiorr, Michele Martinez, Alfredo Blazquez Mandal, Barnik Cardoletti, Juliette Defay, Emmanuel |
| contents | Acoustic haptic technology adds touch sensations to human-machine interfaces by integrating piezoelectric actuators onto touchscreens. Traditional piezoelectric haptic technologies use opaque lead-containing ceramics that are both toxic and visible. We have developed a highly transparent lead-free piezoelectric haptic device using potassium sodium niobate (KNN) and transparent conductive oxide thin films. The KNN film, grown on glass, exhibits a pure perovskite phase and a dense microstructure. This device achieves up to 80% transmittance, surpassing lead zirconate titanate (PZT) thin films. It generates an acoustic resonance at 16.5 kHz and produces a peak-to-peak displacement of 1.0 um at 28 V unipolar, making it suitable for surface rendering applications. This demonstrates the potential of transparent lead-free piezoelectric actuators as an effective alternative to conventional PZT haptic actuators. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_15788 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Highly Transparent Lead-Free Piezoelectric Haptic Device Song, Longfei Glinsek, Sebastjan Alluri, Nagamalleswara Rao Kovacova, Veronika Melchiorr, Michele Martinez, Alfredo Blazquez Mandal, Barnik Cardoletti, Juliette Defay, Emmanuel Materials Science Applied Physics Acoustic haptic technology adds touch sensations to human-machine interfaces by integrating piezoelectric actuators onto touchscreens. Traditional piezoelectric haptic technologies use opaque lead-containing ceramics that are both toxic and visible. We have developed a highly transparent lead-free piezoelectric haptic device using potassium sodium niobate (KNN) and transparent conductive oxide thin films. The KNN film, grown on glass, exhibits a pure perovskite phase and a dense microstructure. This device achieves up to 80% transmittance, surpassing lead zirconate titanate (PZT) thin films. It generates an acoustic resonance at 16.5 kHz and produces a peak-to-peak displacement of 1.0 um at 28 V unipolar, making it suitable for surface rendering applications. This demonstrates the potential of transparent lead-free piezoelectric actuators as an effective alternative to conventional PZT haptic actuators. |
| title | Highly Transparent Lead-Free Piezoelectric Haptic Device |
| topic | Materials Science Applied Physics |
| url | https://arxiv.org/abs/2410.15788 |