Thermally controlled widening of droplet etched nanoholes
We describe a method to control the shape of nanoholes in GaAs (001) which combines the technique of local droplet etching using Ga droplets with long-time thermal annealing. The cone-like shape of inverted nanoholes formed by droplet etching is transformed during long-time annealing into widened ho...
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Veröffentlicht in: | Nanoscale research letters 2014-06, Vol.9 (1), p.285-285, Article 285 |
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creator | Heyn, Christian Schnüll, Sandra Jesson, David E Hansen, Wolfgang |
description | We describe a method to control the shape of nanoholes in GaAs (001) which combines the technique of local droplet etching using Ga droplets with long-time thermal annealing. The cone-like shape of inverted nanoholes formed by droplet etching is transformed during long-time annealing into widened holes with flat bottoms and reduced depth. This is qualitatively understood using a simplified model of mass transport incorporating surface diffusion and evaporation. The hole diameter can be thermally controlled by varying the annealing time or annealing temperature which provides a method for tuning template morphology for subsequent nanostructure nucleation. We also demonstrate the integration of the combined droplet/thermal etching process with heteroepitaxy by the thermal control of hole depth in AlGaAs layers. |
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The cone-like shape of inverted nanoholes formed by droplet etching is transformed during long-time annealing into widened holes with flat bottoms and reduced depth. This is qualitatively understood using a simplified model of mass transport incorporating surface diffusion and evaporation. The hole diameter can be thermally controlled by varying the annealing time or annealing temperature which provides a method for tuning template morphology for subsequent nanostructure nucleation. We also demonstrate the integration of the combined droplet/thermal etching process with heteroepitaxy by the thermal control of hole depth in AlGaAs layers.</description><identifier>ISSN: 1931-7573</identifier><identifier>ISSN: 1556-276X</identifier><identifier>EISSN: 1556-276X</identifier><identifier>DOI: 10.1186/1556-276X-9-285</identifier><identifier>PMID: 24948902</identifier><language>eng</language><publisher>New York: Springer New York</publisher><subject>Chemistry and Materials Science ; EMN Meeting ; Materials Science ; Molecular Medicine ; Nano Express ; Nanochemistry ; Nanoscale Science and Technology ; Nanotechnology ; Nanotechnology and Microengineering</subject><ispartof>Nanoscale research letters, 2014-06, Vol.9 (1), p.285-285, Article 285</ispartof><rights>Heyn et al.; licensee Springer. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( ), which permits unrestricted use, distribution, and reproductionin any medium, provided the original work is properly credited.</rights><rights>The Author(s) 2014</rights><rights>Copyright © 2014 Heyn et al.; licensee Springer. 2014 Heyn et al.; licensee Springer.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b521t-7c1278750b4e9fd1e4d8c1618237af45431a4f067677258e4534662bdb0da7503</citedby><cites>FETCH-LOGICAL-b521t-7c1278750b4e9fd1e4d8c1618237af45431a4f067677258e4534662bdb0da7503</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/PMC4053582/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4053582/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24948902$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Heyn, Christian</creatorcontrib><creatorcontrib>Schnüll, Sandra</creatorcontrib><creatorcontrib>Jesson, David E</creatorcontrib><creatorcontrib>Hansen, Wolfgang</creatorcontrib><title>Thermally controlled widening of droplet etched nanoholes</title><title>Nanoscale research letters</title><addtitle>Nanoscale Res Lett</addtitle><addtitle>Nanoscale Res Lett</addtitle><description>We describe a method to control the shape of nanoholes in GaAs (001) which combines the technique of local droplet etching using Ga droplets with long-time thermal annealing. The cone-like shape of inverted nanoholes formed by droplet etching is transformed during long-time annealing into widened holes with flat bottoms and reduced depth. This is qualitatively understood using a simplified model of mass transport incorporating surface diffusion and evaporation. The hole diameter can be thermally controlled by varying the annealing time or annealing temperature which provides a method for tuning template morphology for subsequent nanostructure nucleation. We also demonstrate the integration of the combined droplet/thermal etching process with heteroepitaxy by the thermal control of hole depth in AlGaAs layers.</description><subject>Chemistry and Materials Science</subject><subject>EMN Meeting</subject><subject>Materials Science</subject><subject>Molecular Medicine</subject><subject>Nano Express</subject><subject>Nanochemistry</subject><subject>Nanoscale Science and Technology</subject><subject>Nanotechnology</subject><subject>Nanotechnology and Microengineering</subject><issn>1931-7573</issn><issn>1556-276X</issn><issn>1556-276X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kUtrGzEUhUVpqB236-7CQDfdTCJp9NwE0pAXGLJJoDuhmbljT9BIjjRuyb-PjBOThHglofPp3MO5CP0k-JgQJU4I56KkUvwtdUkV_4Kmu5ev-a4rUkouqwk6TOkBYyaxFN_QhDLNlMZ0ivTdEuJgnXsqmuDHGJyDtvjft-B7vyhCV7QxrByMBYzNMkve-rAMDtJ3dNBZl-DHyzlD95cXd-fX5fz26ub8bF7WnJKxlA2hUkmOawa6awmwVjVEEEUraTvGWUUs67CQQkrKFTBeMSFo3da4tflbNUOnW9_Vuh6gbSCntM6sYj_Y-GSC7c17xfdLswj_DMO84nnMDP3ZGtR92GPwXmnCYDY1mk2NRptcbDb5_ZIihsc1pNEMfWrAOeshrFPmK80EFUpl9NcH9CGso88dGSI41ZwpLDJ1sqWaGFKK0O0CEWw2u_0kwtHbInb86zIzgLdAypJfQHwzeI_nMyuSrpg</recordid><startdate>20140609</startdate><enddate>20140609</enddate><creator>Heyn, Christian</creator><creator>Schnüll, Sandra</creator><creator>Jesson, David E</creator><creator>Hansen, Wolfgang</creator><general>Springer New York</general><general>Springer Nature B.V</general><general>BioMed Central Ltd</general><general>Springer</general><scope>C6C</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>F28</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>H8D</scope><scope>H8G</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>JQ2</scope><scope>KB.</scope><scope>KR7</scope><scope>L7M</scope><scope>LK8</scope><scope>L~C</scope><scope>L~D</scope><scope>M7P</scope><scope>P64</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20140609</creationdate><title>Thermally controlled widening of droplet etched nanoholes</title><author>Heyn, Christian ; 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subjects | Chemistry and Materials Science EMN Meeting Materials Science Molecular Medicine Nano Express Nanochemistry Nanoscale Science and Technology Nanotechnology Nanotechnology and Microengineering |
title | Thermally controlled widening of droplet etched nanoholes |
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