Highly efficient cyan-red emission in self-activated Sr9In(VO4)7:xEu3+ phosphors for applications in W-LEDs and optical thermometry

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 983, P. 173936 - 173936

Published: Feb. 21, 2024

Language: Английский

---

In-situ fabrication of carbon dots on intense cyan-blue emitting CaAl2O4:Ce3+ phosphor for enhancing thermal sensing, anti-counterfeiting and fingerprint detection applications

Journal of Luminescence, Journal Year: 2025, Volume and Issue: unknown, P. 121111 - 121111

Published: Jan. 1, 2025

Language: Английский

---

Novel Li2Ga0.5Sb0.5O3(Li4GaSbO6):Mn4+ phosphors with multisite occupancy for efficient FIR and luminescence lifetime dual-mode thermometers

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

---

Mn4+ activated phosphors in photoelectric and energy conversion devices

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 86, P. 277 - 299

Published: Aug. 11, 2023

Language: Английский

---

Three-mode fluorescence thermometers based on double perovskite Ba2GdNbO6:Eu3+,Mn4+ phosphors

Ceramics International, Journal Year: 2023, Volume and Issue: 49(23), P. 38007 - 38014

Published: Sept. 14, 2023

Language: Английский

---

Thermally stable rare-earth-free double perovskite phosphors toward dual-mode optical thermometry and dual-functional lighting sources

Journal of Materials Chemistry C, Journal Year: 2023, Volume and Issue: 11(37), P. 12637 - 12648

Published: Jan. 1, 2023

Novel Mn 4+ -activated Sr 2 LuSbO 6 (SLSO) samples have a broad excitation wavelength and further emit deep-red emission corresponding to the E g → 4 A 2g transition, which aligns well with absorption of plant phytochromes.

Language: Английский

---

Thermochromic Upconversion Emission in Tm³⁺/Yb³⁺-Codoped La₂Mo₃O₁₂ Microparticles via Negative Thermal Expansion Engineering for Ultrahigh Sensitivity Optical Thermometry

The Journal of Physical Chemistry C, Journal Year: 2023, Volume and Issue: 127(7), P. 3808 - 3818

Published: Feb. 13, 2023

To develop high-sensitivity optical thermometers, Yb3+/Tm3+-codoped La2Mo3O12 microparticles were synthesized by the sol–gel method. With aid of in situ X-ray diffraction, resultant are verified to possess negative thermal expansion (NTE) properties. When excited at 980 nm, upconversion (UC) emission properties final products investigated, which their strongest fluorescence intensities reached x = 0.07. Due coexistence increased energy transfer, cross-relaxation, and nonradiative relaxation procedures, as-prepared present thermochromic UC emissions. Moreover, intensity arising from 3F2,3 level 583 K is 21 times higher than its starting value 303 K, resulting thermally enhanced luminescence microparticles. By employing ratio technique investigate temperature-related emissions 1G4 levels, thermometric characterization designed compounds explored, where highest absolute relative sensitivities 0.44 K–1 7.37% K–1, respectively. Furthermore, according lifetimes levels Tm3+, developed 0.36% 0.23% Ultimately, visual thermometry also realized studied samples owing Our findings propose a facile strategy NTE regulate behaviors rare-earth ions so as obtain high-sensitive luminescent materials.

Language: Английский

---

Near-infrared Cr³⁺-doped lead-free halide perovskite microcrystals for information encryption and temperature thermometry

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(13), P. 4627 - 4639

Published: Jan. 1, 2024

Lead-free double perovskite materials have attracted lots of interest because they can be doped with luminescence activators to modify their optical characteristics and improve photoluminescence performances.

Language: Английский

---

Synthesis, spectral characteristics and energy transfer of SrLa2Al2O7:Mn4+, Dy3+

Journal of Luminescence, Journal Year: 2023, Volume and Issue: 264, P. 120163 - 120163

Published: Sept. 10, 2023

Language: Английский

---

Synthesis and characterization of a far-red-emitting Sr2ScNbO6: Mn4+ phosphor for short-day plant cultivation

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 964, P. 171333 - 171333

Published: July 11, 2023

Language: Английский

---