: Zinc oxide-zinc tungstate (ZnO-ZnWO4 ) is a self-organized eutectic composite consisting of parallel ZnO thin layers (lamellae) embedded in a dielectric ZnWO4 matrix. The electromagnetic behavior of composite materials is affected not only by the properties of single constituent materials but also by their reciprocal geometrical micro-/nano-structurization, as in the case of ZnO-ZnWO4 . The light interacting with microscopic structural features in the composite material provides new optical properties, which overcome the possibilities offered by the constituent materials. Here remarkable active and passive polarization control of this composite over various wavelength ranges are shown; these properties are based on the crystal orientation of ZnO with respect to the biaxiality of the ZnWO4 matrix. In the visible range, polarization-dependent polarized luminescence occurs for blue light emitted by ZnO. Moreover, it is reported on the enhancement of the second harmonic generation of the composite with respect to its constituents, due to the phase matching condition. Finally, in the medium infrared spectral region, the composite behaves as a metamaterial with strong polarization dependence.

Surprising eutectics: enhanced properties of ZnO-ZnWO4 from visible to MIR / Petronijevic, Emilija; Tomczyk, Monika; Belardini, Alessandro; Osewski, Paweł; Piotrowski, Piotr; Centini, Marco; Leahu, Grigore; Voti, Roberto Li; Pawlak, Dorota Anna; Sibilia, Concita; Larciprete, Maria Cristina. - In: ADVANCED MATERIALS. - ISSN 1521-4095. - (2022), p. e2206005. [10.1002/adma.202206005]

Surprising eutectics: enhanced properties of ZnO-ZnWO4 from visible to MIR

Petronijevic, Emilija
Membro del Collaboration Group
;
Belardini, Alessandro
Membro del Collaboration Group
;
Centini, Marco
Membro del Collaboration Group
;
Voti, Roberto Li
Membro del Collaboration Group
;
Pawlak, Dorota Anna;Sibilia, Concita
Membro del Collaboration Group
;
Larciprete, Maria Cristina
Supervision
2022

Abstract

: Zinc oxide-zinc tungstate (ZnO-ZnWO4 ) is a self-organized eutectic composite consisting of parallel ZnO thin layers (lamellae) embedded in a dielectric ZnWO4 matrix. The electromagnetic behavior of composite materials is affected not only by the properties of single constituent materials but also by their reciprocal geometrical micro-/nano-structurization, as in the case of ZnO-ZnWO4 . The light interacting with microscopic structural features in the composite material provides new optical properties, which overcome the possibilities offered by the constituent materials. Here remarkable active and passive polarization control of this composite over various wavelength ranges are shown; these properties are based on the crystal orientation of ZnO with respect to the biaxiality of the ZnWO4 matrix. In the visible range, polarization-dependent polarized luminescence occurs for blue light emitted by ZnO. Moreover, it is reported on the enhancement of the second harmonic generation of the composite with respect to its constituents, due to the phase matching condition. Finally, in the medium infrared spectral region, the composite behaves as a metamaterial with strong polarization dependence.
2022
ZnO; ZnWO4; eutectics; metamaterials; optical luminescence; second harmonic generation
01 Pubblicazione su rivista::01a Articolo in rivista
Surprising eutectics: enhanced properties of ZnO-ZnWO4 from visible to MIR / Petronijevic, Emilija; Tomczyk, Monika; Belardini, Alessandro; Osewski, Paweł; Piotrowski, Piotr; Centini, Marco; Leahu, Grigore; Voti, Roberto Li; Pawlak, Dorota Anna; Sibilia, Concita; Larciprete, Maria Cristina. - In: ADVANCED MATERIALS. - ISSN 1521-4095. - (2022), p. e2206005. [10.1002/adma.202206005]
File allegati a questo prodotto
File Dimensione Formato  
Petronijevic_Surprising eutectics_2022.pdf

solo gestori archivio

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 3.23 MB
Formato Adobe PDF
3.23 MB Adobe PDF   Contatta l'autore

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1664747
Citazioni
  • ???jsp.display-item.citation.pmc??? 1
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 1
social impact