Aero-Ga2o3 nanomaterial electromagnetically transparent from microwaves to terahertz for internet of things applications
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BRANISTE, Tudor, DRAGOMAN, Mircea L., ZHUKOV, Sergey, ALDRIGO, Martino, CIOBANU, Vladimir, IORDANESCU, Sergiu A., ALYABYEVA, L., FUMAGALLI, Francesco, CECCONE, Giacomo, RAEVSKY, Simion, SCHUTT, Fabian, ADELUNG, Rainer, COLPO, Pascal, GORSHUNOV, Boris, TIGINYANU, Ion. Aero-Ga2o3 nanomaterial electromagnetically transparent from microwaves to terahertz for internet of things applications. In: Nanomaterials, 2020, vol. 10, p. 0. ISSN 2079-4991. DOI: https://doi.org/10.3390/nano10061047
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Nanomaterials
Volumul 10 / 2020 / ISSN 2079-4991 /ISSNe 2079-4991

Aero-Ga2o3 nanomaterial electromagnetically transparent from microwaves to terahertz for internet of things applications

DOI: https://doi.org/10.3390/nano10061047
CZU: [544.032+621.315.592]:004

Pag. 0-0

Braniste Tudor1, Dragoman Mircea L.2, Zhukov Sergey3, Aldrigo Martino2, Ciobanu Vladimir1, Iordanescu Sergiu A.2, Alyabyeva L.3, Fumagalli Francesco4, Ceccone Giacomo4, Raevsky Simion5, Schutt Fabian6, Adelung Rainer6, Colpo Pascal4, Gorshunov Boris3, Tiginyanu Ion17
 
1 Technical University of Moldova,
2 National Institute for Research and Development in Microtechnologies ,
3 Moscow Institute of Physics and Technology,
4 JRC Joint Research Centre, European Commission, Ispra, Italy,
5 Moldova State University,
6 Institute for Material Science, Christian-Albrechts-University of Kiel,
7 Academy of Sciences of Moldova
 
Proiecte:
 
Disponibil în IBN: 24 iunie 2020


Rezumat

In this paper, fabrication of a new material is reported, the so-called Aero-Ga2O3 or Aerogallox, which represents an ultra-porous and ultra-lightweight three-dimensional architecture made from interconnected microtubes of gallium oxide with nanometer thin walls. The material is fabricated using epitaxial growth of an ultrathin layer of gallium nitride on zinc oxide microtetrapods followed by decomposition of sacrificial ZnO and oxidation of GaN which according to the results of X-ray diffraction (XRD) and X-ray photoemission spectroscopy (XPS) characterizations, is transformed gradually in β-Ga2O3 with almost stoichiometric composition. The investigations show that the developed ultra-porous Aerogallox exhibits extremely low reflectivity and high transmissivity in an ultrabroadband electromagnetic spectrum ranging from X-band (8–12 GHz) to several terahertz which opens possibilities for quite new applications of gallium oxide, previously not anticipated.



Cuvinte-cheie
Aero-Ga2O3, Electromagnetically transparent nanomaterial, Extremely low reflectivity, Ultra-porous nanomaterial, X-band and terahertz frequencies

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<meta name="citation_author" content="Braniste Tudor">
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<meta name="citation_author" content="Adelung Rainer">
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<meta name="citation_publication_date" content="2020/06/19">
<meta name="citation_journal_title" content="Nanomaterials">
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