Effect of shell thickness on small-molecule solar cells enhanced by dual plasmonic gold-silica nanorods

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buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage113306en_US
dc.citation.issueNumber11en_US
dc.citation.spage113306en_US
dc.citation.volumeNumber105en_US
dc.contributor.authorXu, X.en_US
dc.contributor.authorDu, Q.en_US
dc.contributor.authorPeng, B.en_US
dc.contributor.authorXiong, Q.en_US
dc.contributor.authorHong, L.en_US
dc.contributor.authorDemir, Hilmi Volkanen_US
dc.contributor.authorWong, T. K. S.en_US
dc.contributor.authorKyaw, A. K. K.en_US
dc.contributor.authorSun, X. W.en_US
dc.date.accessioned2015-07-28T12:02:28Z
dc.date.available2015-07-28T12:02:28Z
dc.date.issued2014-09-19en_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractChemically synthesized gold (Au)-silica nanorods with shell thickness of 0 nm-10 nm were incorporated into the bulk heterojunction of a small-molecule organic solar cell. At optimal (1 wt. %) concentration, Au-silica nanorods with 5 nm shell thickness resulted in the highest power conversion efficiency of 8.29% with 27% relative enhancement. Finite-difference time-domain simulation shows that the localized electric field intensity at the silica shell-organic layer interface decreases with the increase of shell thickness for both 520 nm and 680 nm resonance peaks. The enhanced haze factor for transmission/reflection of the organic layer is not strongly dependent on the shell thickness. Bare Au nanorods yielded the lowest efficiency of 5.4%. Light intensity dependence measurement of the short-circuit current density shows that the silica shell reduces bimolecular recombination at the Au surface. As a result, both localized field intensity and light scattering are involved in efficiency enhancement for an optimized shell thickness of 5 nm.en_US
dc.description.provenanceMade available in DSpace on 2015-07-28T12:02:28Z (GMT). No. of bitstreams: 1 8242.pdf: 1406330 bytes, checksum: 2bbae7328f40278eedbd8399b76b3762 (MD5)en
dc.identifier.doi10.1063/1.4896516en_US
dc.identifier.eissn1077-3118
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/11693/12673
dc.language.isoEnglishen_US
dc.publisherAIP Publishingen_US
dc.relation.isversionofhttp://dx.doi.org/10.1063/1.4896516en_US
dc.source.titleApplied Physics Lettersen_US
dc.subjectAu Nanoparticlesen_US
dc.subjectPerformanceen_US
dc.titleEffect of shell thickness on small-molecule solar cells enhanced by dual plasmonic gold-silica nanorodsen_US
dc.typeArticleen_US

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