Intrinsically Polar Piezoelectric Self‐Assembled Oligopeptide Monolayers
Flexible, biocompatible piezoelectric materials are of considerable research interest for a variety of applications, but many suffer from low response or high cost to manufacture. Herein, novel piezoelectric force and touch sensors based on self‐assembled monolayers of oligopeptides are presented, w...
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Veröffentlicht in: | Advanced materials (Weinheim) 2021-04, Vol.33 (17), p.e2007486-n/a |
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Sprache: | eng |
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Zusammenfassung: | Flexible, biocompatible piezoelectric materials are of considerable research interest for a variety of applications, but many suffer from low response or high cost to manufacture. Herein, novel piezoelectric force and touch sensors based on self‐assembled monolayers of oligopeptides are presented, which produce large piezoelectric voltage response and are easily manufactured without the need for electrical poling. While the devices generate modest piezoelectric charge constants (d33) of up to 9.8 pC N−1, they exhibit immense piezoelectric voltage constants (g33) up to 2 V m N−1. Furthermore, a flexible device prototype is demonstrated that produces open‐circuit voltages of nearly 6 V under gentle bending motion. Improvements in peptide selection and device construction promise to further improve the already outstanding voltage response and open the door to numerous practical applications.
Novel, intrinsically polar‐oligopeptide‐based piezoelectric force and touch sensors producing large piezoelectric voltage response are presented. They are easily manufactured through solution processing, without the need for electrical poling. The devices exhibit immense piezoelectric voltage constants (g33) up to 2 V m N−1 and a flexible device prototype is demonstrated that produces open‐circuit voltages of nearly 6 V under gentle bending motion. |
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ISSN: | 0935-9648 1521-4095 1521-4095 |
DOI: | 10.1002/adma.202007486 |