ZnO superstructures via oriented aggregation initiated in a block copolymer melt

dc.contributor.authorKlaumünzer, Martin
dc.contributor.authorDistaso, Monica
dc.contributor.authorHübner, Jakob
dc.contributor.authorMačković, Mirza
dc.contributor.authorSpiecker, Erdmann
dc.contributor.authorKryschi, Carola
dc.contributor.authorPeukert, Wolfgang
dc.date.accessioned2016-10-04
dc.date.available2016-09-09
dc.date.created2014
dc.date.issued2016-10-04
dc.description.abstractA fast and simple one pot synthesis of ZnO nano- and microparticles initiated and driven by an amino block copolymer O,O′-bis(2-aminopropyl)polypropylene glycol-block-polyethylene glycol-block-polypropylene glycol (Jeffamine®) is reported. The specific building mechanism of ZnO mesocrystals is investigated in detail using electron microscopy and diffraction methods. Mesocrystals with a complex superstructure are formed as a result of a consecutive and oriented multiple stage aggregation process: first a 0D → 1D aggregation process is observed, then a 1D → 3D aggregation process occurs in which secondary particles form cones and multiple cone symmetries. Dots, rods, cones, and multiple cones have been isolated within a time resolved study which clearly supports the growth model. To control the morphology of the product particles, the influence of relevant synthesis parameters including stirring and sonication of the intermediate were investigated. Extensive surface characterization of the resulting mesocrystals is presented using infrared and photoluminescence spectroscopies as well as thermogravimetric analysis. Even after multiple washing steps, the particles exhibit a Jeffamine® coated surface that allows for easy dispersion in both polar and nonpolar solvents. The obtained mesocrystals efficiently scatter in the whole range of visible light.en
dc.format.extent1502 - 1513
dc.identifier.citationCrystEngComm 16.8 (2014): S. 1502-1513. <http://pubs.rsc.org/en/content/articlelanding/2014/ce/c3ce41868e#!divAbstract>
dc.identifier.doihttps://doi.org/10.1039/C3CE41868E
dc.identifier.opus-id7536
dc.identifier.urihttps://open.fau.de/handle/openfau/7536
dc.identifier.urnurn:nbn:de:bvb:29-opus4-75365
dc.language.isoen
dc.rights.urihttp://www.gesetze-im-internet.de/urhg/index.html
dc.subject.ddcDDC Classification::6 Technik, Medizin, angewandte Wissenschaften :: 60 Technik :: 600 Technik, Technologie
dc.titleZnO superstructures via oriented aggregation initiated in a block copolymer melten
dc.typearticle
dcterms.publisherFriedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
local.journal.issue8
local.journal.titleCrystEngComm
local.journal.volume16
local.sendToDnbfree*
local.subject.fakultaetTechnische Fakultät
local.subject.gnd-
local.subject.sammlungUniversität Erlangen-Nürnberg / Allianzlizenzen: Alle Beiträge sind mit Zustimmung der Rechteinhaber aufgrund einer DFG-geförderten Allianzlizenz frei zugänglich. / Allianzlizenzen 2014
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