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Angew Chem Int Ed Engl
; 58(10): 3147-3150, 2019 Mar 04.
Artigo
em Inglês
| MEDLINE
| ID: mdl-30645033
RESUMO
Ceramic nanoparticles that exhibit a plasmonic response are promising next-generation photonic materials. In this contribution, a solid-state metathesis method has been reported for the synthesis of Groupâ 4 nitride (TiN, ZrN, and HfN) nanocrystals. A high-temperature (1000 °C) reaction between Groupâ 4 metal oxide (TiO2 , ZrO2 , and HfO2 ) nanoparticles and magnesium nitride powder yielded nitride nanocrystals that were dispersible in water. A localized surface plasmonic resonance was observed in the near-infrared region for TiN and in the visible region of light for ZrN and HfN nanocrystals. The frequency of the plasmon resonance was dependent on the refractive index of the solvent and the nanocrystal size.