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dc.contributor.authorBansala, Tarunaen_US
dc.contributor.authorMukhopadhyay, Samraten_US
dc.contributor.authorJoshi, Mangalaen_US
dc.contributor.authorDoong, Ruey-anen_US
dc.contributor.authorChaudhary, Manchalen_US
dc.date.accessioned2017-04-21T06:55:54Z-
dc.date.available2017-04-21T06:55:54Z-
dc.date.issued2016-11en_US
dc.identifier.issn0379-6779en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.synthmet.2016.07.034en_US
dc.identifier.urihttp://hdl.handle.net/11536/132859-
dc.description.abstractPVP-stabilized silver nanoparticles (AgNP)-based graphene nanohybrid (Ag-PVP-CRG) have been synthesized and high performance shields for electromagnetic interference (EMI) in the microwave region have been developed. Morphological characterization of Ag-PVP-CRG nanohybrid by scanning electron microscopy, X-ray diffraction and high resolution transmission electron microscopy revealed PVP-stabilized AgNPs (diameter: 15-30 nm) decorated graphene sheets. The Ag-PVP-CRG nanohybrid showed excellent shielding response in the Ku band frequency region, which is majorly governed by absorption losses. The results show that the total EMI shielding effectiveness (SE) value is 58 dB for Ag-PVP-CRG at 2.0 mm thickness in the Ku-band region, dominated by absorption mechanism, which overpowered the 10 dB value of graphene oxide. The presence of AgNPs on graphene sheets enhances space charge polarization, multiple scattering and effective anisotropy energies of the nanohybrid, resulting in high electromagnetic shielding effectiveness. The dielectric behavior was evaluated to correlate with the EMI shielding mechanism. (C) 2016 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectGrapheneen_US
dc.subjectMetal nanoparticlesen_US
dc.subjectSurface-enhanced Raman scattering and electromagnetic wave Absorption propertiesen_US
dc.titleSynthesis and shielding properties of PVP-stabilized-AgNPs-based graphene nanohybrid in the Ku banden_US
dc.identifier.doi10.1016/j.synthmet.2016.07.034en_US
dc.identifier.journalSYNTHETIC METALSen_US
dc.citation.volume221en_US
dc.citation.spage86en_US
dc.citation.epage94en_US
dc.contributor.department環境工程研究所zh_TW
dc.contributor.departmentInstitute of Environmental Engineeringen_US
dc.identifier.wosnumberWOS:000387520900013en_US
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