Strong Second Harmonic Generation (SHG) Originating from Combined Second-Order Jahn-Teller (SOJT) Distortive Cations in a New Noncentrosymmetric Tellurite, InNb(TeO4)2.
Identifieur interne : 000040 ( Main/Exploration ); précédent : 000039; suivant : 000041Strong Second Harmonic Generation (SHG) Originating from Combined Second-Order Jahn-Teller (SOJT) Distortive Cations in a New Noncentrosymmetric Tellurite, InNb(TeO4)2.
Auteurs : RBID : pubmed:24806285Abstract
Pure polycrystalline bulk samples and single crystals of a novel polar noncentrosymmetric (NCS) indium niobium tellurium oxide, InNb(TeO4)2, have been synthesized through solid-state reactions with In2O3, Nb2O5, and TeO2. InNb(TeO4)2 exhibits a three-dimensional structural backbone consisting of layers of corner-shared InO6 octahedra, layers of corner-shared NbO6 octahedra, and chains of corner-shared TeO4 polyhedra. The infrared spectrum shows In-O, Nb-O, and Te-O vibrations, and the UV-vis diffuse reflectance spectrum shows a band gap of 3.5 eV for the reported material. Thermal analysis indicates that InNb(TeO4)2 is thermally stable to 740 °C. Powder second-order nonlinear optical (NLO) measurements reveal that InNb(TeO4)2 has a strong second harmonic generation (SHG) efficiency, 100 times that of α-SiO2. A detailed structural examination indicates that the strong SHG is due to the combined net polarization originating from the distorted environment of second-order Jahn-Teller (SOJT) cations such as Nb(5+) and Te(4+). Elemental analysis, the magnitude of distortion, and calculations of dipole moments for InNb(TeO4)2 are also presented.
DOI: 10.1021/ic5004337
PubMed: 24806285
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Strong Second Harmonic Generation (SHG) Originating from Combined Second-Order Jahn-Teller (SOJT) Distortive Cations in a New Noncentrosymmetric Tellurite, InNb(TeO4)2.</title><author><name sortKey="Kim, Yeong Hun" uniqKey="Kim Y">Yeong Hun Kim</name><affiliation wicri:level="1"><nlm:affiliation>Department of Chemistry, Chung-Ang University , 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Chemistry, Chung-Ang University , 84 Heukseok-ro, Dongjak-gu, Seoul 156-756</wicri:regionArea></affiliation></author><author><name sortKey="Lee, Dong Woo" uniqKey="Lee D">Dong Woo Lee</name></author><author><name sortKey="Ok, Kang Min" uniqKey="Ok K">Kang Min Ok</name></author></titleStmt><publicationStmt><date when="2014">2014</date><idno type="doi">10.1021/ic5004337</idno><idno type="RBID">pubmed:24806285</idno><idno type="pmid">24806285</idno><idno type="wicri:Area/Main/Corpus">000012</idno><idno type="wicri:Area/Main/Curation">000012</idno><idno type="wicri:Area/Main/Exploration">000040</idno></publicationStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Pure polycrystalline bulk samples and single crystals of a novel polar noncentrosymmetric (NCS) indium niobium tellurium oxide, InNb(TeO4)2, have been synthesized through solid-state reactions with In2O3, Nb2O5, and TeO2. InNb(TeO4)2 exhibits a three-dimensional structural backbone consisting of layers of corner-shared InO6 octahedra, layers of corner-shared NbO6 octahedra, and chains of corner-shared TeO4 polyhedra. The infrared spectrum shows In-O, Nb-O, and Te-O vibrations, and the UV-vis diffuse reflectance spectrum shows a band gap of 3.5 eV for the reported material. Thermal analysis indicates that InNb(TeO4)2 is thermally stable to 740 °C. Powder second-order nonlinear optical (NLO) measurements reveal that InNb(TeO4)2 has a strong second harmonic generation (SHG) efficiency, 100 times that of α-SiO2. A detailed structural examination indicates that the strong SHG is due to the combined net polarization originating from the distorted environment of second-order Jahn-Teller (SOJT) cations such as Nb(5+) and Te(4+). Elemental analysis, the magnitude of distortion, and calculations of dipole moments for InNb(TeO4)2 are also presented.</div></front></TEI><pubmed><MedlineCitation Status="Publisher" Owner="NLM"><PMID Version="1">24806285</PMID><DateCreated><Year>2014</Year><Month>5</Month><Day>8</Day></DateCreated><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1520-510X</ISSN><JournalIssue CitedMedium="Internet"><PubDate><Year>2014</Year><Month>May</Month><Day>7</Day></PubDate></JournalIssue><Title>Inorganic chemistry</Title><ISOAbbreviation>Inorg Chem</ISOAbbreviation></Journal><ArticleTitle>Strong Second Harmonic Generation (SHG) Originating from Combined Second-Order Jahn-Teller (SOJT) Distortive Cations in a New Noncentrosymmetric Tellurite, InNb(TeO4)2.</ArticleTitle><Pagination><MedlinePgn></MedlinePgn></Pagination><Abstract><AbstractText NlmCategory="UNLABELLED">Pure polycrystalline bulk samples and single crystals of a novel polar noncentrosymmetric (NCS) indium niobium tellurium oxide, InNb(TeO4)2, have been synthesized through solid-state reactions with In2O3, Nb2O5, and TeO2. InNb(TeO4)2 exhibits a three-dimensional structural backbone consisting of layers of corner-shared InO6 octahedra, layers of corner-shared NbO6 octahedra, and chains of corner-shared TeO4 polyhedra. The infrared spectrum shows In-O, Nb-O, and Te-O vibrations, and the UV-vis diffuse reflectance spectrum shows a band gap of 3.5 eV for the reported material. Thermal analysis indicates that InNb(TeO4)2 is thermally stable to 740 °C. Powder second-order nonlinear optical (NLO) measurements reveal that InNb(TeO4)2 has a strong second harmonic generation (SHG) efficiency, 100 times that of α-SiO2. A detailed structural examination indicates that the strong SHG is due to the combined net polarization originating from the distorted environment of second-order Jahn-Teller (SOJT) cations such as Nb(5+) and Te(4+). Elemental analysis, the magnitude of distortion, and calculations of dipole moments for InNb(TeO4)2 are also presented.</AbstractText></Abstract><AuthorList><Author><LastName>Kim</LastName><ForeName>Yeong Hun</ForeName><Initials>YH</Initials><Affiliation>Department of Chemistry, Chung-Ang University , 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Korea.</Affiliation></Author><Author><LastName>Lee</LastName><ForeName>Dong Woo</ForeName><Initials>DW</Initials></Author><Author><LastName>Ok</LastName><ForeName>Kang Min</ForeName><Initials>KM</Initials></Author></AuthorList><Language>ENG</Language><PublicationTypeList><PublicationType>JOURNAL ARTICLE</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>5</Month><Day>7</Day></ArticleDate></Article><MedlineJournalInfo><MedlineTA>Inorg Chem</MedlineTA><NlmUniqueID>0366543</NlmUniqueID><ISSNLinking>0020-1669</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2014</Year><Month>5</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>5</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>5</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>aheadofprint</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1021/ic5004337</ArticleId><ArticleId IdType="pubmed">24806285</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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