Strong light scattering and broadband (UV to IR) photoabsorption in stretchable 3D hybrid architectures based on Aerographite decorated by ZnO nanocrystallites
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2018-08-07 17:16
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TIGINYANU, Ion, GHIMPU, Lidia, GROTTRUP, Jorit, POSTOLACHE, Vitalie, MECKLENBURG, Matthias, STEVENS-KALCEFF, Marion A., URSACHI, Veaceslav, PAYAMI, Nader, FEIDENHANSL, Robert K., SCHULTE, K., ADELUNG, Rainer, MISHRA, Yogendra Kumar. Strong light scattering and broadband (UV to IR) photoabsorption in stretchable 3D hybrid architectures based on Aerographite decorated by ZnO nanocrystallites. In: Scientific Reports, 2016, vol. 6, pp. 1-11. ISSN 2045-2322. DOI: https://doi.org/10.1038/srep32913
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Scientific Reports
Volumul 6 / 2016 / ISSN 2045-2322

Strong light scattering and broadband (UV to IR) photoabsorption in stretchable 3D hybrid architectures based on Aerographite decorated by ZnO nanocrystallites

DOI:https://doi.org/10.1038/srep32913

Pag. 1-11

Tiginyanu Ion12, Ghimpu Lidia12, Grottrup Jorit3, Postolache Vitalie12, Mecklenburg Matthias4, Stevens-Kalceff Marion A.5, Ursachi Veaceslav12, Payami Nader6, Feidenhansl Robert K.6, Schulte K.4, Adelung Rainer3, Mishra Yogendra Kumar3
 
1 Technical University of Moldova,
2 Institute of the Electronic Engineering and Nanotechnologies "D. Ghitu" of the Academy of Sciences of Moldova,
3 Institute for Material Science, Christian-Albrechts-University of Kiel,
4 Hamburg University of Technology,
5 University of New South Wales,
6 University of Copenhagen
 
 
Disponibil în IBN: 20 martie 2018


Rezumat

In present work, the nano- and microscale tetrapods from zinc oxide were integrated on the surface of Aerographite material (as backbone) in carbon-metal oxide hybrid hierarchical network via a simple and single step magnetron sputtering process. The fabricated hybrid networks are characterized for morphology, microstructural and optical properties. The cathodoluminescence investigations revealed interesting luminescence features related to carbon impurities and inherent host defects in zinc oxide. Because of the wide bandgap of zinc oxide and its intrinsic defects, the hybrid network absorbs light in the UV and visible regions, however, this broadband photoabsorption behavior extends to the infrared (IR) region due to the dependence of the optical properties of ZnO architectures upon size and shape of constituent nanostructures and their doping by carbon impurities. Such a phenomenon of broadband photoabsorption ranging from UV to IR for zinc oxide based hybrid materials is novel. Additionally, the fabricated network exhibits strong visible light scattering behavior. The developed Aerographite/nanocrystalline ZnO hybrid network materials, equipped with broadband photoabsorption and strong light scattering, are very promising candidates for optoelectronic technologies.

Cuvinte-cheie
nanoparticles, Organic–inorganic nanostructures, Sensors and biosensors