Plasmon-enhanced photoresponse of single silver nanowires and their network devices

buir.contributor.authorRazeghi, Mohammadali
buir.contributor.authorÜstünçelik, Merve
buir.contributor.authorShabani, Farzan
buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.authorKasırga, T. Serkan
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
buir.contributor.orcidKasırga, T. Serkan|0000-0003-3510-5059
buir.contributor.orcidShabani, Farzan|0000-0003-2174-5960
dc.citation.epage402en_US
dc.citation.issueNumber4en_US
dc.citation.spage396en_US
dc.citation.volumeNumber7en_US
dc.contributor.authorRazeghi, Mohammadali
dc.contributor.authorÜstünçelik, Merve
dc.contributor.authorShabani, Farzan
dc.contributor.authorDemir, Hilmi Volkan
dc.contributor.authorKasırga, T. Serkan
dc.date.accessioned2023-02-17T07:24:09Z
dc.date.available2023-02-17T07:24:09Z
dc.date.issued2022-02-11
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Physicsen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractThe photo-bolometric effect is critically important in optoelectronic structures and devices employing metallic electrodes with nanoscale features due to heating caused by the plasmonic field enhancement. One peculiar case is individual silver nanowires (Ag NWs) and their networks. Ag NW-networks exhibit excellent thermal, electrical, and mechanical properties, providing a simple yet reliable alternative to common flexible transparent electrode materials used in optoelectronic devices. To date, there have been no reports on the photoresponse of Ag NWs. In this study, we show that single Ag NWs and networks of such Ag NWs possess a significant, intrinsic photoresponse, thanks to the photo-bolometric effect, as directly observed and measured using scanning photocurrent microscopy. Surface plasmon polaritons (SPPs) created at the contact metals or plasmons created at the nanowire-metal structures cause heating at the junctions where a plasmonic field enhancement is possible. The local heating of the Ag NWs results in negative photoconductance due to the bolometric effect. Here an open-circuit response due to the plasmon-enhanced Seebeck effect was recorded at the NW-metal contact junctions. The SPP-assisted bolometric effect is found to be further enhanced by decorating the Ag NWs with Ag nanoparticles. These observations are relevant to the use of metallic nanowires in plasmonic applications in particular and in optoelectronics in general. Our findings may pave the path for plasmonics-enabled sensing without spectroscopic detection.en_US
dc.identifier.doi10.1039/d1nh00629ken_US
dc.identifier.eissn2055-6764
dc.identifier.issn2055-6756
dc.identifier.urihttp://hdl.handle.net/11693/111473
dc.language.isoEnglishen_US
dc.publisherRoyal Society of Chemistryen_US
dc.relation.isversionofhttps://dx.doi.org/10.1039/d1nh00629ken_US
dc.source.titleNanoscale Horizonsen_US
dc.titlePlasmon-enhanced photoresponse of single silver nanowires and their network devicesen_US
dc.typeArticleen_US
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