Universität zu Köln

Ichangi, Arun, Le, Khan, Queralto, Albert, Grosch, Matthias, Weissing, Rene, Unlu, Feray ORCID: 0000-0001-7242-8020, Chijioke, Amadi Kingsley, Verma, Anjneya, Fischer, Thomas, Surmenev, Roman ORCID: 0000-0002-8061-3047 and Mathur, Sanjay (2022). Electrospun BiFeO3 Nanofibers for Vibrational Energy Harvesting Application. Adv. Eng. Mater., 24 (7). WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1527-2648

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Abstract

Bismuth ferrite (BiFeO3, BFO) has found application in a wide range of fields owing to its fascinating multiferroic properties. Herein, the interplay between the piezoelectric properties and morphology of BFO nanostructures is exploited for vibrational energy harvesting application by tailoring BFO to a high aspect ratio and high surface area nanofiber morphology. This work demonstrates a facile pathway for the fabrication of high-performance flexible nanogenerators, based on BFO nanofibers, from a cost-effective and energy-efficient electrospinning technique. The X-ray diffraction data of calcined fibers confirm the formation of noncentrosymmetric crystalline perovskite phase. The morphological characterization by scanning electron microscopy shows a compact anisotropic nanofibrous morphology. For the fabrication of nanogenerators, BFO nanofibers are embedded in a piezoactive polymer matrix (polyvinylidenfluoride [PVDF]). As-fabricated BFO/PVDF composite nanogenerators produce a high peak-to-peak voltage output of 7.6 V, with an average output power density of 185 +/- 106 nW cm(-2) upon periodic application of force through finger knocking.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Ichangi, Arun UNSPECIFIED UNSPECIFIED UNSPECIFIED Le, Khan UNSPECIFIED UNSPECIFIED UNSPECIFIED Queralto, Albert UNSPECIFIED UNSPECIFIED UNSPECIFIED Grosch, Matthias UNSPECIFIED UNSPECIFIED UNSPECIFIED Weissing, Rene UNSPECIFIED UNSPECIFIED UNSPECIFIED Unlu, Feray UNSPECIFIED orcid.org/0000-0001-7242-8020 UNSPECIFIED Chijioke, Amadi Kingsley UNSPECIFIED UNSPECIFIED UNSPECIFIED Verma, Anjneya UNSPECIFIED UNSPECIFIED UNSPECIFIED Fischer, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED Surmenev, Roman UNSPECIFIED orcid.org/0000-0002-8061-3047 UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-673211
DOI:	10.1002/adem.202101394
Journal or Publication Title:	Adv. Eng. Mater.
Volume:	24
Number:	7
Date:	2022
Publisher:	WILEY-V C H VERLAG GMBH
Place of Publication:	WEINHEIM
ISSN:	1527-2648
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language POLY(VINYLIDENE FLUORIDE); PIEZOELECTRIC NANOGENERATOR; PERFORMANCE; COMPOSITE; PVDF; PHASES; SENSOR Multiple languages Materials Science, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/67321