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Design, luminescence properties and applications of Cr3+-doped ScTaO4: a broadband near-infrared phosphor.
- Source :
-
Dalton Transactions: An International Journal of Inorganic Chemistry . 11/14/2022, Vol. 51 Issue 42, p16325-16335. 11p. - Publication Year :
- 2022
-
Abstract
- Near-infrared (NIR) emitting LED devices have broad applications. Using a visible light LED chip to excite Cr3+-activated phosphors to obtain NIR light has attracted extensive attention. In this study, a near-infrared luminescent material, Cr3+-doped Sc1−xTaO4, was synthesized by the element substitution method. It demonstrated a long emission wavelength (940 nm) and wide full width at half maximum (FWHM) (186 nm). The morphology, structure and photoluminescence of the samples were investigated using X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) spectroscopy techniques. Moreover, the relationship between the NIR emission properties of Cr3+ and the substituted ions in the crystal matrix was studied. Based on this material, we fabricated near-infrared LED devices, which exhibited good near-infrared luminescence properties. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 51
- Issue :
- 42
- Database :
- Academic Search Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 160003558
- Full Text :
- https://doi.org/10.1039/d2dt02671f