Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177763 - 177763
Published: Nov. 1, 2024
Language: Английский
Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177763 - 177763
Published: Nov. 1, 2024
Language: Английский
Journal of the American Ceramic Society, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 22, 2025
Abstract Violet light, a component of sunlight, is critical for human health, but it usually ignored in classic white light‐emitting diodes (LEDs) that are fabricated by pumping green, yellow, or red phosphors blue LEDs. To realized full‐spectrum LEDs healthy lighting, required to replace near‐ultraviolet (n‐UV) violet pump multi‐color phosphors. Herein, we reported and/or blue–violet Na 3 KMg 7 P 6 O 24 :Eu 2+ (NKMPO:Eu ) and K 1– y Sr Mg 7– Li (NKSMLPO:Eu can be efficiently excited n‐UV The NKSMLPO:Eu phosphor ( = 0.1), showing small thermal quenching, had photoluminescence quantum yield 64.9% 41.2% under 365 405 nm excitation, respectively. Full‐spectrum were obtained combining with the blue/blue–violet‐emitting other commercial phosphors, which show correlated color temperature 4285–4705 maximal rendering index 98.4. It confirms adopted as light filler producing sunlight‐like
Language: Английский
Citations
1Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 672, P. 600 - 609
Published: June 5, 2024
Language: Английский
Citations
8Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(30), P. 11209 - 11241
Published: Jan. 1, 2024
The research progress of Ce 3+ /Eu 2+ doped phosphors that can be excited by violet light, including the structural models, composition regulation, and spectral tuning, is summarized.
Language: Английский
Citations
8Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(34)
Published: Aug. 9, 2024
Abstract Phosphors with multifunctional applications have attracted extensive research, especially in thermometer and anti‐counterfeiting fields. Herein, a series of Pr 3+ ‐doped YNbO 4 (YNO) phosphors adjustable photoluminescence red persistent luminescence (PersL) performances are developed. YNO host exhibits the blue self‐activated luminescence, different emission peaks possess various thermal stability properties due to quenching channel generated by intervalence charge transfer state between Nb 5+ ions. Two kinds fluorescence intensity ratio models high absolute relative sensitivities realized measure temperature under dual‐wavelength excitation. Moreover, YNO:Pr PersL duration about 120 s upon ceasing UV excitation light source. The fabricated ‐polydimethylsiloxane films display patterns passage time after turning off light, which can cleverly achieve dynamic conversion. These results demonstrate that phosphor has potential excited thermometry
Language: Английский
Citations
8Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 113111 - 113111
Published: May 19, 2024
Language: Английский
Citations
7Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161129 - 161129
Published: Feb. 1, 2025
Language: Английский
Citations
0Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: March 21, 2025
Luminescent temperature sensing has become a research hotspot in the past few years. Nevertheless, improving sensitivity and resolution remains key challenge. Herein, Bi3+,Sm3+-codoped CaYGaO4 phosphors with precise performance excellent photochromic characteristics were developed. The energy difference between Sm3+ levels hinders multiphoton relaxation (MPR) process, giving rise to insensitivity. By virtue of drastically different dependence Bi3+ ions, an accurate fluorescence intensity ratio (FIR) thermometer is fabricated. emission used as reference signal, while adopted probe signal. maximum absolute (Sa) relative (Sr) CaYGaO4:Bi3+,Sm3+ are 0.0018 K–1 (@563 K) 0.56% (@544 K), respectively. Moreover, exhibits superior characteristics, rapidly changing its color from white brown 25 s under 254 nm light irradiation, outstanding cycling stability. Overall, provide potential multifunctional applications anticounterfeiting optical information storage fields.
Language: Английский
Citations
0Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180137 - 180137
Published: April 1, 2025
Language: Английский
Citations
0Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown
Published: April 10, 2025
Abstract The rapid advancements in solid‐state lighting have underscored the need for efficient and thermally stable phosphors light‐emitting diode (LED) applications. Herein, a red phosphor CaSc 2 O 4 :Eu 2+ ( λ ex = 450 nm, em 650 nm) is synthesized employing non‐stoichiometric strategy to increase photoluminescence quantum efficiency (PLQY). Spectroscopic crystallographic properties analysis confirm that emission band originates from Eu ions occupying single Ca site with significant nephelauxetic effects crystal field splitting. Excessive CaCO 3 additions promote reduction of 3+ an trap concentration, enhancing PLQY 24% 61% improving intensities at 150 °C 8% 41% room temperature. Versatile LED light sources, including high‐quality white LED, plant growth, integrated pixelated intelligent matrices been explored practical This study proposes optimized enhance thermal stability ‐doped oxide‐based multifunctional
Language: Английский
Citations
0Journal of Luminescence, Journal Year: 2025, Volume and Issue: unknown, P. 121261 - 121261
Published: April 1, 2025
Language: Английский
Citations
0