Mn²⁺-activated dual-wavelength emitting materials toward wearable optical fibre temperature sensor.

ABSTRACT: Photothermal sensing is crucial for the creation of smart wearable devices. However, the discovery of luminescent materials with suitable dual-wavelength emissions is a great challenge for the construction of stable wearable optical fibre temperature sensors. Benefiting from the Mn²⁺-Mn²⁺ superexchange interactions, a dual-wavelength (530/650 nm)-emitting material Li₂ZnSiO₄:Mn²⁺ is presented via simple increasing the Mn²⁺ concentration, wherein the two emission bands have different temperature-dependent emission behaviours, but exhibit quite similar excitation spectra. Density functional theory calculations, coupled with extended X-ray absorption fine structure and electron-diffraction analyses reveal the origins of the two

SUBMITTER: Song E 

PROVIDER: S-EPMC9021195 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature