Formation and Dissolution of Twin ZnO Nanostructures Promoted by Water and Control over Their Emitting Properties

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Distaso M, Mackovic M, Spiecker E, Peukert W
Zeitschrift: Chemistry - A European Journal
Verlag: Wiley-VCH Verlag
Jahr der Veröffentlichung: 2014
Band: 20
Heftnummer: 26
Seitenbereich: 8199--8209
ISSN: 0947-6539


Abstract


By using ZnO as a model system, the formation of twinned nanostructures has been investigated under microwave irradiation, exploiting experimental conditions ranging from purely solvothermal when N,N-dimethylformamide was used, to purely hydrothermal when water was the solvent. A progressive increase in size, elongation and roughness of the surface was observed with increasing water content in the solvent mixture. Particular attention was paid to the reactivity of the ZnO surfaces towards dissolution. Our results show that the formation of twinned nanorods is a dynamic process and that the coupling interphase itself is highly reactive. Consequently, the twinned rods undergo a number of complex dissolution processes that are responsible for the appearance of a wide distribution of defects either on the surface or inside the structure. Poly(N-vinyl pyrrolidone) influences the photoluminescent properties of the as-synthesised materials and allows control of the ratio of the intensity of the UV and visible emission.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Distaso, Monica Dr.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Mackovic, Mirza Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Peukert, Wolfgang Prof. Dr.-Ing.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Spiecker, Erdmann Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)


Zusätzliche Organisationseinheit(en)
Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)
Exzellenz-Cluster Engineering of Advanced Materials


Forschungsbereiche

A1 Functional Particle Systems
Exzellenz-Cluster Engineering of Advanced Materials
A2 Nanoanalysis and Microscopy
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Distaso, M., Mackovic, M., Spiecker, E., & Peukert, W. (2014). Formation and Dissolution of Twin ZnO Nanostructures Promoted by Water and Control over Their Emitting Properties. Chemistry - A European Journal, 20(26), 8199--8209. https://dx.doi.org/10.1002/chem.201400100

MLA:
Distaso, Monica, et al. "Formation and Dissolution of Twin ZnO Nanostructures Promoted by Water and Control over Their Emitting Properties." Chemistry - A European Journal 20.26 (2014): 8199--8209.

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Zuletzt aktualisiert 2019-29-05 um 15:57