Show simple item record

AuthorHörmann, Utedc.contributor.author
AuthorKaiser, Utedc.contributor.author
AuthorAlbrecht, Martindc.contributor.author
AuthorGeserick, Jasmindc.contributor.author
AuthorHusing, Nicoladc.contributor.author
Date of accession2022-05-25T13:39:54Zdc.date.accessioned
Available in OPARU since2022-05-25T13:39:54Zdc.date.available
Date of first publication2010-02-26dc.date.issued
AbstractTwo samples of mesoporous anatase nanoparticles, prepared by the sol-gel method, were characterised by Cs-corrected high resolution transmission electron microscopy (HRTEM), X-ray powder diffraction (XRD) and Raman spectroscopy. Statistical evaluation of TEM data showed an average diameter of these crystallites of 8.8 nm and 11.1 nm, respectively. Optical spectroscopy by cathodoluminescence (CL) in a scanning electron microscope (SEM) showed free exciton transitions related to the direct and the indirect band gap of anatase TiO2. From the analysis of the excited states of the free excitons an exciton binding energy of 10 meV and a Bohr radius of 2.35 nm is obtained. The small Bohr radius could explain the absence of quantum confinement in the particles presented in this study.dc.description.abstract
Languageendc.language.iso
PublisherUniversität Ulmdc.publisher
LicenseCC BY 4.0 Internationaldc.rights
Link to license texthttps://creativecommons.org/licenses/by/4.0/dc.rights.uri
KeywordTIO2 NANOCRYSTALSdc.subject
KeywordRAMAN-SCATTERINGdc.subject
Dewey Decimal GroupDDC 540 / Chemistry & allied sciencesdc.subject.ddc
LCSHRaman effectdc.subject.lcsh
LCSHSemiconductorsdc.subject.lcsh
TitleStructure and luminescence of sol-gel synthesized anatase nanoparticlesdc.title
Resource typeBeitrag zu einer Konferenzdc.type
SWORD Date2022-02-17T00:00:20Zdc.date.updated
VersionpublishedVersiondc.description.version
DOIhttp://dx.doi.org/10.18725/OPARU-43233dc.identifier.doi
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-oparu-43309-7dc.identifier.urn
GNDHalbleiterdc.subject.gnd
FacultyFakultät für Naturwissenschaftenuulm.affiliationGeneral
InstitutionZE Elektronenmikroskopieuulm.affiliationSpecific
InstitutionInstitut für Anorganische Chemie I (Materialien und Katalyse)uulm.affiliationSpecific
Peer reviewjauulm.peerReview
DCMI TypeTextuulm.typeDCMI
CategoryPublikationenuulm.category
In cooperation withLeibniz-Institut für Kristallzüchtunguulm.cooperation
DOI of original publication10.1088/1742-6596/209/1/012039dc.relation1.doi
Source - Title of sourceJournal of Physics: Conference Seriessource.title
Source - Place of publicationIOP Publishingsource.publisher
Source - Volume209source.volume
Source - Issue1source.issue
Source - Year2010source.year
Source - Article number012039source.articleNumber
Source - ISSN1742-6588source.identifier.issn
Source - eISSN1742-6596source.identifier.eissn
Conference name16th International Conference on Microscopy of Semiconducting Materialsuulm.conferenceName
Conference placeOxforduulm.conferencePlace
Conference start date2009-03-17uulm.conferenceStartDate
Conference end date2009-03-20uulm.conferenceEndDate
CommunityZentrale Einrichtungenuulm.community
CommunityFakultät für Naturwissenschaftenuulm.community
WoS000283739100039uulm.identifier.wos
Bibliographyuulmuulm.bibliographie


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record