Thickness of a metallic film, in addition to its roughness, plays a significant role in SERS activity
In this paper we evaluate the effect of roughness and thickness of silver film substrates, fabricated on glass and polydimethylsiloxane (PDMS) templates, on surface-enhanced Raman Spectroscopy (SERS) activity. While the silver substrates obtained on glass templates exhibit nm-scale roughness, the si...
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| Veröffentlicht in: | Scientific reports 2015-06, Vol.5 (1), p.11644-11644, Article 11644 |
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| creator | Lee, Changwon Robertson, Christopher S. Nguyen, An H. Kahraman, Mehmet Wachsmann-Hogiu, Sebastian |
| description | In this paper we evaluate the effect of roughness and thickness of silver film substrates, fabricated on glass and polydimethylsiloxane (PDMS) templates, on surface-enhanced Raman Spectroscopy (SERS) activity. While the silver substrates obtained on glass templates exhibit nm-scale roughness, the silver substrates on PDMS templates show larger roughness, on the order of 10 s of nm. These roughness values do not change significantly with the thickness of the silver film. The SERS intensities of 4-aminothiophenol (ATP) deposited on these substrates strongly depend on both roughness and thickness, with more significant contribution from the roughness on thinner films. FEM simulations of the electric field intensities on surfaces of different thicknesses for rough and flat surfaces suggest higher localized plamons on thinner, rough surfaces. This study indicates that, besides roughness, the thickness of the metallic layer plays a significant role in the SERS activity. |
| doi_str_mv | 10.1038/srep11644 |
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While the silver substrates obtained on glass templates exhibit nm-scale roughness, the silver substrates on PDMS templates show larger roughness, on the order of 10 s of nm. These roughness values do not change significantly with the thickness of the silver film. The SERS intensities of 4-aminothiophenol (ATP) deposited on these substrates strongly depend on both roughness and thickness, with more significant contribution from the roughness on thinner films. FEM simulations of the electric field intensities on surfaces of different thicknesses for rough and flat surfaces suggest higher localized plamons on thinner, rough surfaces. This study indicates that, besides roughness, the thickness of the metallic layer plays a significant role in the SERS activity.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/srep11644</identifier><identifier>PMID: 26119106</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/624/399/1098 ; 639/925/927/356 ; Gold ; Humanities and Social Sciences ; multidisciplinary ; Nanoparticles ; Polydimethylsiloxane ; Raman spectroscopy ; Science ; Silver ; Spectroscopy ; Substrates</subject><ispartof>Scientific reports, 2015-06, Vol.5 (1), p.11644-11644, Article 11644</ispartof><rights>The Author(s) 2015</rights><rights>Copyright Nature Publishing Group Jun 2015</rights><rights>Copyright © 2015, Macmillan Publishers Limited 2015 Macmillan Publishers Limited</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c504t-7b65ac9a88f6912804bdc5116686e2d3f139cb37ec80240cdbb0325de0d86dc73</citedby><cites>FETCH-LOGICAL-c504t-7b65ac9a88f6912804bdc5116686e2d3f139cb37ec80240cdbb0325de0d86dc73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5155581/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5155581/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,41096,42165,51551,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26119106$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lee, Changwon</creatorcontrib><creatorcontrib>Robertson, Christopher S.</creatorcontrib><creatorcontrib>Nguyen, An H.</creatorcontrib><creatorcontrib>Kahraman, Mehmet</creatorcontrib><creatorcontrib>Wachsmann-Hogiu, Sebastian</creatorcontrib><title>Thickness of a metallic film, in addition to its roughness, plays a significant role in SERS activity</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>In this paper we evaluate the effect of roughness and thickness of silver film substrates, fabricated on glass and polydimethylsiloxane (PDMS) templates, on surface-enhanced Raman Spectroscopy (SERS) activity. While the silver substrates obtained on glass templates exhibit nm-scale roughness, the silver substrates on PDMS templates show larger roughness, on the order of 10 s of nm. These roughness values do not change significantly with the thickness of the silver film. The SERS intensities of 4-aminothiophenol (ATP) deposited on these substrates strongly depend on both roughness and thickness, with more significant contribution from the roughness on thinner films. FEM simulations of the electric field intensities on surfaces of different thicknesses for rough and flat surfaces suggest higher localized plamons on thinner, rough surfaces. This study indicates that, besides roughness, the thickness of the metallic layer plays a significant role in the SERS activity.</description><subject>639/624/399/1098</subject><subject>639/925/927/356</subject><subject>Gold</subject><subject>Humanities and Social Sciences</subject><subject>multidisciplinary</subject><subject>Nanoparticles</subject><subject>Polydimethylsiloxane</subject><subject>Raman spectroscopy</subject><subject>Science</subject><subject>Silver</subject><subject>Spectroscopy</subject><subject>Substrates</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>BENPR</sourceid><recordid>eNplkV1rHCEYhaU0NCHJRf9AEXLTlmzqx-jqTaCENCkECkl6LY46u6aObtQJ7L-vy6bLtvVG4Tzn-L4cAN5jdIERFV9KdiuMede9AUcEdWxGKCFv996H4LSUJ9QOI7LD8h04JBxjiRE_Au5x6c2v6EqBaYAajq7qELyBgw_jOfQRamt99SnCmqCvBeY0LZYbwzlcBb0uzVT8IvrBGx1rk4Pb2B6u7x-gNtW_-Lo-AQeDDsWdvt7H4Oe368er29ndj5vvV1_vZoahrs7mPWfaSC3EwCUmAnW9NawtxwV3xNIBU2l6OndGINIhY_seUcKsQ1Zwa-b0GFxuc1dTPzprXKxZB7XKftR5rZL26m8l-qVapBfFMGNM4Bbw8TUgp-fJlapGX4wLQUeXpqIwl4RIQqls6Nk_6FOacmzrKSykZLzjaBP4aUuZnEqratgNg5Ha9Kd2_TX2w_70O_JPWw34vAVKk-LC5b0v_0v7DbTJpFw</recordid><startdate>20150629</startdate><enddate>20150629</enddate><creator>Lee, Changwon</creator><creator>Robertson, Christopher S.</creator><creator>Nguyen, An H.</creator><creator>Kahraman, Mehmet</creator><creator>Wachsmann-Hogiu, Sebastian</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20150629</creationdate><title>Thickness of a metallic film, in addition to its roughness, plays a significant role in SERS activity</title><author>Lee, Changwon ; 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| subjects | 639/624/399/1098 639/925/927/356 Gold Humanities and Social Sciences multidisciplinary Nanoparticles Polydimethylsiloxane Raman spectroscopy Science Silver Spectroscopy Substrates |
| title | Thickness of a metallic film, in addition to its roughness, plays a significant role in SERS activity |
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