Bifunctional near-infrared-emitting phosphors of chromium (III)-activated antimonates for NIR light-emitting diodes and low-temperature thermometry

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 965, P. 171370 - 171370

Published: July 14, 2023

Language: Английский

---

A four-mode optical thermometer designed in double perovskite Ca2GdNbO6:Bi3+,Eu3+

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1002, P. 175220 - 175220

Published: June 17, 2024

Language: Английский

---

A novel multifunctional Eu3+/Mn4+ co-doping double perovskite phosphor for applications in LEDs and optical thermometry

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1319, P. 139399 - 139399

Published: July 22, 2024

Language: Английский

---

Charge transfer band excited (Sr,Ba)2YTaO6:Eu3+ reddish-orange-emitting phosphors for luminescence lifetime thermometry and flexible anti-counterfeiting labels

Journal of Alloys and Compounds, Journal Year: 2022, Volume and Issue: 930, P. 167454 - 167454

Published: Oct. 3, 2022

Language: Английский

---

A novel multifunctional double perovskite structure phosphor La2MgTiO6:Mn4+, Eu3+

Optical Materials, Journal Year: 2023, Volume and Issue: 141, P. 113967 - 113967

Published: June 1, 2023

Language: Английский

---

Bi3+/Mn4+ co-doped Y2MgTiO6 dual-emitting phosphors for plant growth lighting and temperature sensor

Ceramics International, Journal Year: 2024, Volume and Issue: 50(15), P. 27039 - 27051

Published: May 3, 2024

Language: Английский

---

A six-mode optical thermometry rooted from the distinct thermal behavior of SrLaLiTeO6: Mn4+, Eu3+ double perovskites and their potential application in wavelength detection

Journal of Science Advanced Materials and Devices, Journal Year: 2023, Volume and Issue: 8(2), P. 100544 - 100544

Published: Feb. 22, 2023

Developing accurate and reliable temperature sensors with better sensitivity, high spatial, temporal, resolutions via cost-effective methods is a major concern in the scientific world. Optical thermometry has gained worldwide interest owing to its unique features compared conventional counterparts. For first time, six-mode optical implemented Eu3+ Mn4+ co-doped SrLaLiTeO6 (SLLT) double perovskites. X-ray diffraction analysis identified crystal structure of phosphor as monoclinic (P21/n). Additionally, Raman FTIR spectra confirmed successful incorporation ions into SLLT host. Thermometric properties SLLT: Eu3+, over wide range were analyzed using fluorescence intensity ratio (FIR) emissions, TCL-based FIR, dual excitation single emission band (SBR) ratio, charge transfer absorption edge host 4f-4f ions, lifetime line broadening methods. A maximum sensitivity 1.97% K−1 at 200 K obtained bands spectra, 0.33% 340 method, 0.20% 500 method. The study envisages perovskites potential if proper sensing method detect temperature. also examined for wavelength detection 270–330 nm proves be promising candidate 8.09% nm−1 305 nm.

Language: Английский

---

Designing dual-emission phosphors for temperature warning indication and dual-mode luminescence thermometry

Dalton Transactions, Journal Year: 2023, Volume and Issue: 52(43), P. 15798 - 15806

Published: Jan. 1, 2023

Color tunable phosphors of Mn4+ and Tb3+ co-doped double-perovskite SrGdLiTeO6 (SGLT) were synthesized in this work. The crystal parameters photoluminescence performances investigated detail. By taking advantage the different thermal quenching strengths between ions, emission color SGLT:0.7%Mn4+/1%Tb3+ changed from red to green, which could be used for high-temperature temperature warning indication. Moreover, according luminescence intensity ratio (LIR) technique, wide temperature-range optical thermometry was developed further, maximum relative sensitivity (SR1) value SGLT:0.7%Mn4+/5%Tb3+ phosphor determined 1.49% K-1 at 560 K. On other hand, sensing properties also analyzed based on temperature-dependent lifetime method. most interesting thing is that SR2 reached 1.88% 573 This work proved potentially indication high thermometry.

Language: Английский

---

Versatile Ca₂LnSbO₆:Eu³⁺/Mn⁴⁺ (Ln = La, Y, Gd, and Lu) phosphors for temperature sensing and plant growth LED

Journal of the American Ceramic Society, Journal Year: 2023, Volume and Issue: 106(6), P. 3568 - 3583

Published: Feb. 7, 2023

Abstract A multifunctional double‐perovskite‐type Ca 2 LnSbO 6 (Ln = La, Y, Gd, and Lu) phosphors with Eu 3+ Mn 4+ co‐doped were successfully synthesized designed to simultaneously apply temperature sensing plant growth LED. With varying from 303 523 K, the integrated intensity of ions ( E g → 4 2g ) markedly decline swifter comparing 5 D 0 7 F due thermal quenching effect. It implies that is susceptive in this work. exhibits high heat resistance, which can be selected as a calibration parameter for fluorescence ratio sensor. The maximum relative sensitivity S r values :1%Eu , 0.5%Mn Gd) phosphor are estimated 2.19% K −1 at 443 1.68% 503 1.80% 483 respectively. They superior many recent emerging phosphors. Moreover, upon 365 nm excitation, :1%Eu, display wide red emission peaking 696, 680, 677, 684 nm, come overlapped – transition . Their full widths half 34, 35, 29 all perfectly overlapping absorption curves chlorophyll b their fabricated phosphor‐converted light‐emitting diode device ulteriorly corroborated promising applications growth. Markedly, systematic analysis crystal chemistry site preferentially occupancy first reported discussed by bond valence theory.

Language: Английский

---

Bi3+-doping enhanced ZnWO4: Eu3+ phosphors energy transfer and its high FIR optical thermometry characteristics

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

Published: Jan. 1, 2025

Language: Английский

---