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Crystallization control in Ni 2+ ‐doped glass‐ceramics for broadband near‐infrared luminesce
Author(s) -
Mao Qiannan,
Lan Bijiao,
Zhou Shifeng
Publication year - 2020
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.16938
Subject(s) - dopant , broadband , materials science , photonics , nanocrystal , optoelectronics , doping , photovoltaics , luminescence , fabrication , crystallization , laser , ceramic , infrared , optics , nanotechnology , chemical engineering , photovoltaic system , composite material , medicine , ecology , physics , alternative medicine , engineering , pathology , biology
The research of doped photonic glass has recently attracted much attention owning to the significant applications in various fields, including lasers, photovoltaics, and optical amplification. In this work, we present the design, fabrication, and experimental implementation of a novel fluorosilicate photonic glass‐ceramics with broadband luminescence. We demonstrate that precipitated nanocrystals can be tuned by changing the heat‐treatment temperature. This proposal offers an excellent opportunity for controlling the local environment around Ni 2+ dopant. Consequently, the broadband and flat emission covering a waveband from 1200 to 2400 nm with a bandwidth of 605 nm can be realized. The possible physical mechanism, which can be attributed to the gradual change of nanocrystals from K 2 SiF 6 to KCdF 3 with the enhancement of the heat‐treatment temperature, is also discussed.