Transformation of self-assembled InAs/InP quantum dots into quantum rings without capping.
Identifieur interne : 002B69 ( Main/Exploration ); précédent : 002B68; suivant : 002B70Transformation of self-assembled InAs/InP quantum dots into quantum rings without capping.
Auteurs : RBID : pubmed:16089485English descriptors
- KwdEn :
- Arsenicals (analysis), Arsenicals (chemistry), Crystallization (methods), Indium (analysis), Indium (chemistry), Materials Testing, Molecular Conformation, Nanostructures (analysis), Nanostructures (chemistry), Nanostructures (ultrastructure), Phase Transition, Phosphines (analysis), Phosphines (chemistry), Quantum Dots.
- MESH :
- chemical , analysis : Arsenicals, Indium, Phosphines.
- chemical , chemistry : Arsenicals, Indium, Phosphines.
- analysis : Nanostructures.
- chemistry : Nanostructures.
- methods : Crystallization.
- ultrastructure : Nanostructures.
- Materials Testing, Molecular Conformation, Phase Transition, Quantum Dots.
Abstract
Transformation of self-assembled InAs quantum dots (QDs) on InP(100) into quantum rings (QRs) is studied. In contrast to the typical approach to III--V semiconductor QR growth, the QDs are not capped to form rings. Atomic force micrographs reveal a drastic change from InAs QDs into rings after a growth interruption in tertiarybutylphosphine ambient. Strain energy relief in the InAs QD is discussed and a mechanism for dot-to-ring transformation by As/P exchange reactions is proposed.
DOI: 10.1021/nl050646v
PubMed: 16089485
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Transformation of self-assembled InAs/InP quantum dots into quantum rings without capping.</title><author><name sortKey="Sormunen, Jaakko" uniqKey="Sormunen J">Jaakko Sormunen</name><affiliation wicri:level="1"><nlm:affiliation>Optoelectronics Laboratory, Micronova, Helsinki University of Technology, P.O. Box 3500, FIN-02015 TKK, Finland. jaakko.sormunen@hut.fi</nlm:affiliation><country xml:lang="fr">Finlande</country><wicri:regionArea>Optoelectronics Laboratory, Micronova, Helsinki University of Technology, P.O. Box 3500, FIN-02015 TKK</wicri:regionArea></affiliation></author><author><name sortKey="Riikonen, Juha" uniqKey="Riikonen J">Juha Riikonen</name></author><author><name sortKey="Mattila, Marco" uniqKey="Mattila M">Marco Mattila</name></author><author><name sortKey="Tiilikainen, Jouni" uniqKey="Tiilikainen J">Jouni Tiilikainen</name></author><author><name sortKey="Sopanen, Markku" uniqKey="Sopanen M">Markku Sopanen</name></author><author><name sortKey="Lipsanen, Harri" uniqKey="Lipsanen H">Harri Lipsanen</name></author></titleStmt><publicationStmt><date when="2005">2005</date><idno type="doi">10.1021/nl050646v</idno><idno type="RBID">pubmed:16089485</idno><idno type="pmid">16089485</idno><idno type="wicri:Area/Main/Corpus">002E20</idno><idno type="wicri:Area/Main/Curation">002E20</idno><idno type="wicri:Area/Main/Exploration">002B69</idno></publicationStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Arsenicals (analysis)</term><term>Arsenicals (chemistry)</term><term>Crystallization (methods)</term><term>Indium (analysis)</term><term>Indium (chemistry)</term><term>Materials Testing</term><term>Molecular Conformation</term><term>Nanostructures (analysis)</term><term>Nanostructures (chemistry)</term><term>Nanostructures (ultrastructure)</term><term>Phase Transition</term><term>Phosphines (analysis)</term><term>Phosphines (chemistry)</term><term>Quantum Dots</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Arsenicals</term><term>Indium</term><term>Phosphines</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Arsenicals</term><term>Indium</term><term>Phosphines</term></keywords><keywords scheme="MESH" qualifier="analysis" xml:lang="en"><term>Nanostructures</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Nanostructures</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Crystallization</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Nanostructures</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Materials Testing</term><term>Molecular Conformation</term><term>Phase Transition</term><term>Quantum Dots</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Transformation of self-assembled InAs quantum dots (QDs) on InP(100) into quantum rings (QRs) is studied. In contrast to the typical approach to III--V semiconductor QR growth, the QDs are not capped to form rings. Atomic force micrographs reveal a drastic change from InAs QDs into rings after a growth interruption in tertiarybutylphosphine ambient. Strain energy relief in the InAs QD is discussed and a mechanism for dot-to-ring transformation by As/P exchange reactions is proposed.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">16089485</PMID><DateCreated><Year>2005</Year><Month>08</Month><Day>10</Day></DateCreated><DateCompleted><Year>2005</Year><Month>09</Month><Day>16</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1530-6984</ISSN><JournalIssue CitedMedium="Print"><Volume>5</Volume><Issue>8</Issue><PubDate><Year>2005</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Nano letters</Title><ISOAbbreviation>Nano Lett.</ISOAbbreviation></Journal><ArticleTitle>Transformation of self-assembled InAs/InP quantum dots into quantum rings without capping.</ArticleTitle><Pagination><MedlinePgn>1541-3</MedlinePgn></Pagination><Abstract><AbstractText>Transformation of self-assembled InAs quantum dots (QDs) on InP(100) into quantum rings (QRs) is studied. In contrast to the typical approach to III--V semiconductor QR growth, the QDs are not capped to form rings. Atomic force micrographs reveal a drastic change from InAs QDs into rings after a growth interruption in tertiarybutylphosphine ambient. Strain energy relief in the InAs QD is discussed and a mechanism for dot-to-ring transformation by As/P exchange reactions is proposed.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Sormunen</LastName><ForeName>Jaakko</ForeName><Initials>J</Initials><Affiliation>Optoelectronics Laboratory, Micronova, Helsinki University of Technology, P.O. Box 3500, FIN-02015 TKK, Finland. jaakko.sormunen@hut.fi</Affiliation></Author><Author ValidYN="Y"><LastName>Riikonen</LastName><ForeName>Juha</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Mattila</LastName><ForeName>Marco</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Tiilikainen</LastName><ForeName>Jouni</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Sopanen</LastName><ForeName>Markku</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Lipsanen</LastName><ForeName>Harri</ForeName><Initials>H</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Nano Lett</MedlineTA><NlmUniqueID>101088070</NlmUniqueID><ISSNLinking>1530-6984</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Arsenicals</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Phosphines</NameOfSubstance></Chemical><Chemical><RegistryNumber>045A6V3VFX</RegistryNumber><NameOfSubstance>Indium</NameOfSubstance></Chemical><Chemical><RegistryNumber>1303-11-3</RegistryNumber><NameOfSubstance>indium arsenide</NameOfSubstance></Chemical><Chemical><RegistryNumber>22398-80-7</RegistryNumber><NameOfSubstance>indium phosphide</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N">Arsenicals</DescriptorName><QualifierName MajorTopicYN="N">analysis</QualifierName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Crystallization</DescriptorName><QualifierName MajorTopicYN="Y">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Indium</DescriptorName><QualifierName MajorTopicYN="N">analysis</QualifierName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Materials Testing</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Molecular Conformation</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Nanostructures</DescriptorName><QualifierName MajorTopicYN="N">analysis</QualifierName><QualifierName MajorTopicYN="Y">chemistry</QualifierName><QualifierName MajorTopicYN="Y">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Phase Transition</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Phosphines</DescriptorName><QualifierName MajorTopicYN="N">analysis</QualifierName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y">Quantum Dots</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2005</Year><Month>8</Month><Day>11</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2005</Year><Month>9</Month><Day>17</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2005</Year><Month>8</Month><Day>11</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1021/nl050646v</ArticleId><ArticleId IdType="pubmed">16089485</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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