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Defect‐Directed Growth of Symmetrically Branched Metal Nanocrystals
Branched plasmonic nanocrystals (NCs) have attracted much attention due to electric field enhancements at their tips. Seeded growth provides routes to NCs with defined branching patterns and, in turn, near‐field distributions with defined symmetries. Here, a systematic analysis was undertaken in whi...
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Published in: | Angewandte Chemie 2020-01, Vol.132 (2), p.953-960 |
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description | Branched plasmonic nanocrystals (NCs) have attracted much attention due to electric field enhancements at their tips. Seeded growth provides routes to NCs with defined branching patterns and, in turn, near‐field distributions with defined symmetries. Here, a systematic analysis was undertaken in which seeds containing different distributions of planar defects were used to grow branched NCs in order to understand how their distributions direct the branching. Characterization of the products by multimode electron tomography and analysis of the NC morphologies at different overgrowth stages indicate that the branching patterns are directed by the seed defects, with the emergence of branches from the seed faces consistent with minimizing volumetric strain energy at the expense of surface energy. These results contrast with growth of branched NCs from single‐crystalline seeds and provide a new platform for the synthesis of symmetrically branched plasmonic NCs.
Verzweigte Metall‐Nanokristalle sind für viele Anwendungen interessant. Ein neues Kristallisationskonzept wurde gefunden, bei dem Verzweigungen von den Flächen defektreicher Kristallkeime ausgehen. Die Ergebnisse bestätigen, dass die Evolution von defektreichen Kristallkeimen zu verzweigten Strukturen ein Balanceakt zwischen Oberflächenenergie und volumetrischer Spannungsenergie ist. |
doi_str_mv | 10.1002/ange.201913301 |
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Verzweigte Metall‐Nanokristalle sind für viele Anwendungen interessant. Ein neues Kristallisationskonzept wurde gefunden, bei dem Verzweigungen von den Flächen defektreicher Kristallkeime ausgehen. Die Ergebnisse bestätigen, dass die Evolution von defektreichen Kristallkeimen zu verzweigten Strukturen ein Balanceakt zwischen Oberflächenenergie und volumetrischer Spannungsenergie ist.</description><identifier>ISSN: 0044-8249</identifier><identifier>EISSN: 1521-3757</identifier><identifier>DOI: 10.1002/ange.201913301</identifier><language>eng</language><publisher>Weinheim: Wiley Subscription Services, Inc</publisher><subject>Chemistry ; Crystal defects ; Crystals ; Electric fields ; Kristallwachstum ; Legierungen ; Morphology ; Nanocrystals ; Nanopartikel ; Plasmonen ; Seeds ; Sterische Spannung ; Surface energy ; Surface properties ; Volumetric strain</subject><ispartof>Angewandte Chemie, 2020-01, Vol.132 (2), p.953-960</ispartof><rights>2020 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2021-2ecc9e826e4bd6f76b3330dd6227cd550cb4c76cc5ee94b5f210708b070fd8093</citedby><cites>FETCH-LOGICAL-c2021-2ecc9e826e4bd6f76b3330dd6227cd550cb4c76cc5ee94b5f210708b070fd8093</cites><orcidid>0000-0002-1873-100X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Smith, Joshua D.</creatorcontrib><creatorcontrib>Bladt, Eva</creatorcontrib><creatorcontrib>Burkhart, Joseph A. C.</creatorcontrib><creatorcontrib>Winckelmans, Naomi</creatorcontrib><creatorcontrib>Koczkur, Kallum M.</creatorcontrib><creatorcontrib>Ashberry, Hannah M.</creatorcontrib><creatorcontrib>Bals, Sara</creatorcontrib><creatorcontrib>Skrabalak, Sara E.</creatorcontrib><title>Defect‐Directed Growth of Symmetrically Branched Metal Nanocrystals</title><title>Angewandte Chemie</title><description>Branched plasmonic nanocrystals (NCs) have attracted much attention due to electric field enhancements at their tips. Seeded growth provides routes to NCs with defined branching patterns and, in turn, near‐field distributions with defined symmetries. Here, a systematic analysis was undertaken in which seeds containing different distributions of planar defects were used to grow branched NCs in order to understand how their distributions direct the branching. Characterization of the products by multimode electron tomography and analysis of the NC morphologies at different overgrowth stages indicate that the branching patterns are directed by the seed defects, with the emergence of branches from the seed faces consistent with minimizing volumetric strain energy at the expense of surface energy. These results contrast with growth of branched NCs from single‐crystalline seeds and provide a new platform for the synthesis of symmetrically branched plasmonic NCs.
Verzweigte Metall‐Nanokristalle sind für viele Anwendungen interessant. Ein neues Kristallisationskonzept wurde gefunden, bei dem Verzweigungen von den Flächen defektreicher Kristallkeime ausgehen. Die Ergebnisse bestätigen, dass die Evolution von defektreichen Kristallkeimen zu verzweigten Strukturen ein Balanceakt zwischen Oberflächenenergie und volumetrischer Spannungsenergie ist.</description><subject>Chemistry</subject><subject>Crystal defects</subject><subject>Crystals</subject><subject>Electric fields</subject><subject>Kristallwachstum</subject><subject>Legierungen</subject><subject>Morphology</subject><subject>Nanocrystals</subject><subject>Nanopartikel</subject><subject>Plasmonen</subject><subject>Seeds</subject><subject>Sterische Spannung</subject><subject>Surface energy</subject><subject>Surface properties</subject><subject>Volumetric strain</subject><issn>0044-8249</issn><issn>1521-3757</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkD9PwzAQxS0EEqWwMkdiTjnbSRyPpX8CUikDMFuJc6ap0qTYqapsfAQ-I58EV0Uwsty74ffunh4h1xRGFIDd5s0bjhhQSTkHekIGNGY05CIWp2QAEEVhyiJ5Ti6cWwNAwoQckNkUDeru6-NzWlm_YBlktt13q6A1wXO_2WBnK53XdR_c2bzRKw88YpfXwTJvWm1753d3Sc6MF7z60SF5nc9eJvfh4il7mIwXoWbgszDUWmLKEoyKMjEiKbiPWpYJY0KXcQy6iLRItI4RZVTEhlEQkBZ-mDIFyYfk5nh3a9v3HbpOrdudbfxLxTinglHBU0-NjpS2rXMWjdraapPbXlFQh6rUoSr1W5U3yKNhX9XY_0Or8TKb_Xm_Aforbb4</recordid><startdate>20200107</startdate><enddate>20200107</enddate><creator>Smith, Joshua D.</creator><creator>Bladt, Eva</creator><creator>Burkhart, Joseph A. C.</creator><creator>Winckelmans, Naomi</creator><creator>Koczkur, Kallum M.</creator><creator>Ashberry, Hannah M.</creator><creator>Bals, Sara</creator><creator>Skrabalak, Sara E.</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-1873-100X</orcidid></search><sort><creationdate>20200107</creationdate><title>Defect‐Directed Growth of Symmetrically Branched Metal Nanocrystals</title><author>Smith, Joshua D. ; Bladt, Eva ; Burkhart, Joseph A. C. ; Winckelmans, Naomi ; Koczkur, Kallum M. ; Ashberry, Hannah M. ; Bals, Sara ; Skrabalak, Sara E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2021-2ecc9e826e4bd6f76b3330dd6227cd550cb4c76cc5ee94b5f210708b070fd8093</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Chemistry</topic><topic>Crystal defects</topic><topic>Crystals</topic><topic>Electric fields</topic><topic>Kristallwachstum</topic><topic>Legierungen</topic><topic>Morphology</topic><topic>Nanocrystals</topic><topic>Nanopartikel</topic><topic>Plasmonen</topic><topic>Seeds</topic><topic>Sterische Spannung</topic><topic>Surface energy</topic><topic>Surface properties</topic><topic>Volumetric strain</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Smith, Joshua D.</creatorcontrib><creatorcontrib>Bladt, Eva</creatorcontrib><creatorcontrib>Burkhart, Joseph A. C.</creatorcontrib><creatorcontrib>Winckelmans, Naomi</creatorcontrib><creatorcontrib>Koczkur, Kallum M.</creatorcontrib><creatorcontrib>Ashberry, Hannah M.</creatorcontrib><creatorcontrib>Bals, Sara</creatorcontrib><creatorcontrib>Skrabalak, Sara E.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Angewandte Chemie</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Smith, Joshua D.</au><au>Bladt, Eva</au><au>Burkhart, Joseph A. C.</au><au>Winckelmans, Naomi</au><au>Koczkur, Kallum M.</au><au>Ashberry, Hannah M.</au><au>Bals, Sara</au><au>Skrabalak, Sara E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Defect‐Directed Growth of Symmetrically Branched Metal Nanocrystals</atitle><jtitle>Angewandte Chemie</jtitle><date>2020-01-07</date><risdate>2020</risdate><volume>132</volume><issue>2</issue><spage>953</spage><epage>960</epage><pages>953-960</pages><issn>0044-8249</issn><eissn>1521-3757</eissn><abstract>Branched plasmonic nanocrystals (NCs) have attracted much attention due to electric field enhancements at their tips. Seeded growth provides routes to NCs with defined branching patterns and, in turn, near‐field distributions with defined symmetries. Here, a systematic analysis was undertaken in which seeds containing different distributions of planar defects were used to grow branched NCs in order to understand how their distributions direct the branching. Characterization of the products by multimode electron tomography and analysis of the NC morphologies at different overgrowth stages indicate that the branching patterns are directed by the seed defects, with the emergence of branches from the seed faces consistent with minimizing volumetric strain energy at the expense of surface energy. These results contrast with growth of branched NCs from single‐crystalline seeds and provide a new platform for the synthesis of symmetrically branched plasmonic NCs.
Verzweigte Metall‐Nanokristalle sind für viele Anwendungen interessant. Ein neues Kristallisationskonzept wurde gefunden, bei dem Verzweigungen von den Flächen defektreicher Kristallkeime ausgehen. Die Ergebnisse bestätigen, dass die Evolution von defektreichen Kristallkeimen zu verzweigten Strukturen ein Balanceakt zwischen Oberflächenenergie und volumetrischer Spannungsenergie ist.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/ange.201913301</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-1873-100X</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Chemistry Crystal defects Crystals Electric fields Kristallwachstum Legierungen Morphology Nanocrystals Nanopartikel Plasmonen Seeds Sterische Spannung Surface energy Surface properties Volumetric strain |
title | Defect‐Directed Growth of Symmetrically Branched Metal Nanocrystals |
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