Real-time direct transmission electron microscopy imaging of phase and morphology transformation from solid indium oxide hydroxide to hollow corundum-type indium oxide nanocrystallites
dc.contributor.author | Schlicker, Lukas | |
dc.contributor.author | Popescu, Radian | |
dc.contributor.author | Bekheet, Maged F. | |
dc.contributor.author | Doran, Andrew | |
dc.contributor.author | Gerthsen, Dagmar | |
dc.contributor.author | Gurlo, Aleksander | |
dc.date.accessioned | 2019-07-09T14:39:54Z | |
dc.date.available | 2019-07-09T14:39:54Z | |
dc.date.issued | 2019-05-31 | |
dc.description.abstract | A time-resolved series of high-resolution transmission electron microscopy (HRTEM) images are used to monitor phase and morphology transformation of rod-like and spherical particles with the initial orthorhombic InOOH phase in situ under continuous illumination with high-energy electrons in a transmission electron microscope. For both particle types, the electron-beam irradiation induces a fast InOOH to rh-In2O3 decomposition accompanied by the formation of voids within the particle/rod center. After illumination time intervals of about 1–2 min (i.e. electron dose 6.3–12.6 × 10^7 e nm^−2) for particles and 8 min (4.3 × 10^8 e nm^−2) for rods, respectively, several small empty cavities become visible in the particle/rod center. The cavities coalesce and form a large hollow space/canal after further illumination. Time-resolved in situ HRTEM unambiguously shows that the formation of internal voids in both nanoparticle types is a consequence of the structural InOOH-to-rh-In2O3 phase transition that starts at the surface of the corresponding particle. The as-formed oxide phase encapsulates the untransformed hydroxylated phase. Its decomposition does not follow the Kirkendall mechanism; the matter transferred outwards is removed in the form of water, leading to void formation inside without an increase of the particle size. | en |
dc.description.sponsorship | TU Berlin, Open-Access-Mittel - 2019 | en |
dc.identifier.eissn | 2040-3372 | |
dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/9603 | |
dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-8649 | |
dc.language.iso | en | en |
dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | en |
dc.subject.ddc | 600 Technik, Technologie | de |
dc.subject.other | high-resolution transmission electron microscopy | en |
dc.subject.other | in situ | en |
dc.subject.other | indium oxide hydroxide | en |
dc.subject.other | HRTEM | en |
dc.subject.other | nanoparticle | en |
dc.title | Real-time direct transmission electron microscopy imaging of phase and morphology transformation from solid indium oxide hydroxide to hollow corundum-type indium oxide nanocrystallites | en |
dc.type | Article | en |
dc.type.version | publishedVersion | en |
dcterms.bibliographicCitation.doi | 10.1039/C9NR02115A | en |
dcterms.bibliographicCitation.journaltitle | Nanoscale | en |
dcterms.bibliographicCitation.originalpublishername | Royal Society of Chemistry | en |
dcterms.bibliographicCitation.originalpublisherplace | Cambridge | en |
dcterms.bibliographicCitation.pageend | 12249 | en |
dcterms.bibliographicCitation.pagestart | 12242 | en |
dcterms.bibliographicCitation.volume | 11 | en |
tub.accessrights.dnb | free | en |
tub.affiliation | Fak. 3 Prozesswissenschaften::Inst. Werkstoffwissenschaften und -technologien::FG Keramische Werkstoffe | de |
tub.affiliation.faculty | Fak. 3 Prozesswissenschaften | de |
tub.affiliation.group | FG Keramische Werkstoffe | de |
tub.affiliation.institute | Inst. Werkstoffwissenschaften und -technologien | de |
tub.publisher.universityorinstitution | Technische Universität Berlin | en |