Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/155566
Title: A UNIVERSAL STRATEGY FOR FERROELECTRIC ENERGY SCAVENGING ENHANCEMENT
Authors: LU XIN
ORCID iD:   orcid.org/0000-0002-6631-7532
Keywords: piezoelectricity, pyroelectricity, ferroelectricity, plasmonic, energy harvesting enhancement, surface charge density
Issue Date: 6-May-2019
Citation: LU XIN (2019-05-06). A UNIVERSAL STRATEGY FOR FERROELECTRIC ENERGY SCAVENGING ENHANCEMENT. ScholarBank@NUS Repository.
Abstract: In this work, the ferroelectric materials polyvinylidene fluoride (PVDF) and barium titanate (BTO) were investigated. Their energy generating potential was augmented with the use of silver (Ag) nano particles increasing their piezoelectric and pyroelectric performances due to the plasmonic effect. The optimized composition of PVDF-Ag shows an enhancement of 43% for Piezoresponse and 121% for Pyroelectric response. For BTO-Ag, an enhancement of 46% for Pyroelectric response is observed. The enhancement in the piezoresponse is attributed to the thermal expansion-induced local strain of PVDF-Ag owing to the plasmonic photothermic effect of Ag nanoparticles, which converts light to heat in the PVDF matrix while the enhancement in pyroelectric response in both cases is attributed to an enlarged depletion region in the presence of light, promotes more empty surface state filled by electron, and leads to charging of Ag nanoparticle.
URI: https://scholarbank.nus.edu.sg/handle/10635/155566
Appears in Collections:Master's Theses (Open)

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