Abstract
Since the conventional fluorine-based electro-active polymers release toxic residues into the environment during their syntheses and decomposition processes, eco-friendly piezoelectric polymers are urgently demanded in the field of energy-related soft materials. Here, we derive a high-performance biodegradable chitin polymer from squid pen material and demonstrate its utility as a flexible piezoelectric material. The readily controlled ferroelectric chitin film confers excellent piezoelectricity under external mechanical pressure, resulting in comparable performance with that of conventional fluorine-based piezoelectric polymers. In particular, the sufficient piezoelectric behavior in chitin film allows us to not only realize a high-fidelity paper-type speaker and microphone that operates over a wide frequency range without significantly deteriorating the input and output sounds but also demonstrate transparent speaker consisting of AgNWs electrodes onto freestanding chitin film which also enables to resemble the original sound. Finally, the biodegradable chitin polymer can be successfully dissolved by chitinase enzyme within eight days without any toxic residues remained.
| Original language | English |
|---|---|
| Pages (from-to) | 275-283 |
| Number of pages | 9 |
| Journal | Nano Energy |
| Volume | 48 |
| DOIs | |
| Publication status | Published - 2018 Jun |
Bibliographical note
Funding Information:This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education ( NRF - 2015R1D1A1A02060332 , 2015R1A2A1A10054152 , NRF - 2016R1D1A1A09918268 ) and the Korea government MSIP ( NRF-2014R1A1A1038415 ). This research was also supported by the Leading Foreign Research Institute Recruitment Program through the NRF funded by MSIP ( 2017K1A4A3015437 ), the research fund of the Ulsan National Institute of Science and Technology ( UNIST ) in 2017 ( 1.170083.01 ), MOTIE ( 10052105 ), and KDRC support program for the development of future devices technology for display industry. Computational resources are from UNIST-HPC. J. K. thanks the support from the Energy Technology Development Project of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 1711026557 ).
Funding Information:
This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2015R1D1A1A02060332, 2015R1A2A1A10054152, NRF-2016R1D1A1A09918268) and the Korea government MSIP (NRF-2014R1A1A1038415). This research was also supported by the Leading Foreign Research Institute Recruitment Program through the NRF funded by MSIP (2017K1A4A3015437), the research fund of the Ulsan National Institute of Science and Technology (UNIST) in 2017 (1.170083.01), MOTIE (10052105), and KDRC support program for the development of future devices technology for display industry. Computational resources are from UNIST-HPC. J. K. thanks the support from the Energy Technology Development Project of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 1711026557).
Publisher Copyright:
© 2018 Elsevier Ltd
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
- Electrical and Electronic Engineering
