Highly efficient Fe³⁺-doped A₂BB'O₆ (A = Sr²⁺, Ca²⁺; B, B' = In³⁺, Sb⁵⁺, Sn⁴⁺) broadband near-infrared-emitting phosphors for spectroscopic analysis.

ABSTRACT: Near-infrared (NIR)-emitting phosphor-converted light-emitting diodes have attracted widespread attention in various applications based on NIR spectroscopy. Except for typical Cr³⁺-activated NIR-emitting phosphors, next-generation Cr³⁺-free NIR-emitting phosphors with high efficiency and tunable optical properties are highly desired to enrich the types of NIR luminescent materials for different application fields. Here, we report the Fe³⁺-activated Sr_2-yCa_y(InSb)_1-zSn_2zO₆ phosphors that exhibit unprecedented long-wavelength NIR emission. The overall emission tuning from 885 to 1005 nm with broadened full-width at half maximum from 108 to 146 nm was realized through a crystallographic site engineering st

SUBMITTER: Liu D 

PROVIDER: S-EPMC9046267 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature