BROWSE

Related Researcher

Author

Kwak, Sang Kyu
Kyu’s MolSim Lab @ UNIST
Research Interests
  • Molecular modeling and simulation, statistical thermodynamics, molecular physics

ITEM VIEW & DOWNLOAD

Biodegradable, electro-active chitin nanofiber films for flexible piezoelectric transducers

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Biodegradable, electro-active chitin nanofiber films for flexible piezoelectric transducers
Author
Kim, KyungtaeHa, MinjeongChoi, ByeongwookJoo, Se HunKang, Han SolPark, Ju HyunGu, BongjunPark, ChanhoPark, CheolminKim, JongbokKwak, Sang KyuKo, HyunhyubJin, JunghoKang, Seok Ju
Keywords
Piezoelectric polymer; Chitin; Ferroelectric polymer; Polysaccharide; Paper speaker
Issue Date
201806
Publisher
Elsevier BV
Citation
NANO ENERGY, v.48, no., pp.275 - 283
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.
URI
Go to Link
DOI
http://dx.doi.org/10.1016/j.nanoen.2018.03.056
ISSN
2211-2855
Appears in Collections:
ECHE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU