Abstract

The photonic properties of glass ceramics (GCs) are often enabled by encapsulating nanocrystals (NCs) and doped transition metal ions (TMIs). However, it is difficult to probe the optics-related effect between the host NCs’ band structure and doped TMIs’ $d {\text -} d$ orbitals. Herein, perovskite-type ${\rm{KZn}}{{\rm{F}}_3}{:}{\rm{Ni\,NCs}}$ in ${\rm{KF}} {-} {\rm{Zn}}{{\rm{F}}_2} {-} {\rm{Si}}{{\rm{O}}_2}$ GCs were prepared and taken as a model system. The excited-state dynamics of host NCs and Ni ions’ $d {\text -} d$ orbitals were studied by transient absorption spectroscopy. It presents a strong interaction between Ni’s $d$ orbitals and the band edge, which could extract excitonic energy in photonic applications. These findings facilitate understanding and design of TMIs-doped GCs in real-life photonic applications.

© 2020 Optical Society of America

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Corrections

15 September 2020: A typographical correction was made to the author email listing.


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