Phosphors for solid-state white lighting
WebSep 15, 2024 · A series of novel white light-emitting LaAl 2.03 B 4 O 10.54: Dy 3+ phosphors for light-emitting diode applications were synthesized by high-temperature solid-state reactions. The results of X-ray diffraction measurement indicate that the crystal structure of the phosphors is LaAl 2.03 B 4 O 10.54. WebDec 31, 2006 · Abstract: Since the mid-1990s, phosphors have played a key role in emerging solid-state white-lighting technologies that are based on combining a III-nitride-based near-UV or blue solid-state light source with downconversion to longer wavelengths. Almost all widely used phosphors comprise a crystalline oxide, nitride, or oxynitride host that is …
Phosphors for solid-state white lighting
Did you know?
WebNov 14, 2024 · Phosphor-converted white light-emitting diodes (pc-WLEDs) have emerged as next-generation solid-state lighting technology and is a potential substitute for traditional lighting sources such... Web15 hours ago · Ultra-high color rendering warm-white light-emitting diodes based on an efficient green-emitting garnet phosphor for solid-state lighting. ... Synthesis, structure and photoluminescence properties of Ca 2 YTaO 6: Bi 3+ \Eu 3+ double perovskite white light emitting phosphors. J. Alloys Compd., 868 (2024), Article 159257.
WebImportantly, the cyan-emitting CLZA:1% Ce 3+ phosphors possessed a luminescence efficiency of 58%. Notably, the CLZA:1% Ce 3+ cyan phosphors allowed to fill the cyan gap between the blue and green emission bands in white LEDs, and the value of color rendering index could be enhanced from 82.3 to 89.2. WebNoteworthy is that, intrinsic emission of Tb3+ ions is attributed to the effective energy transfer from the trapped exciton state of the double perovskite host to Tb3+ ions. Finally, mixing 30% Tb3+ alloyed Cs2Ag0.6Na0.4InCl6:Bi and Cs2NaInCl6:10%Sb phosphors, a series of double-perovskite-based white light-emitting diodes (WLEDs) are prepared.
WebNoteworthy is that, intrinsic emission of Tb3+ ions is attributed to the effective energy transfer from the trapped exciton state of the double perovskite host to Tb3+ ions. Finally, mixing 30% Tb3+ alloyed Cs2Ag0.6Na0.4InCl6:Bi and Cs2NaInCl6:10%Sb phosphors, a series of double-perovskite-based white light-emitting diodes (WLEDs) are prepared. WebHigh efficient single−component full−color emitting Ca6Y2Na2(PO4)6F2 (CYNPF): Eu2+, Tb3+, Mn2+ phosphors have been synthesized by high−temperature solid−state reaction. Coupled with the Eu2+, Tb3+, and Mn2+ emission bands centered at 455 nm, 547 nm, and 580 nm, color-tunable white light can be generated. The
WebFurther, as time goes the compact fluorescent lamps (CFLs) have been surpassed by the warm white LEDs. In the solid state lighting (SSL) devices (including LEDs), violet, blue, and green LEDs are based upon InGaN semiconductors, while the red and amber LEDs are based upon AlInGaP semiconductors (Phillips, 2007; Krames, 2007; Schubert, 2005).
WebFeb 1, 2024 · High-power white LED/LD for solid-state lighting puts forward higher requirements for glass ceramic phosphor, for example, large absorption, high luminous efficacy (LE), high quantum yield (QY), and excellent color quality (e.g., high color index (CRI) and low correlated color temperature (CCT)). bomb and heavyWeb15 hours ago · Ultra-high color rendering warm-white light-emitting diodes based on an efficient green-emitting garnet phosphor for solid-state lighting. ... Synthesis, structure and photoluminescence properties of Ca 2 YTaO 6: Bi 3+ \Eu 3+ double perovskite white light emitting phosphors. J. Alloys Compd., 868 (2024), Article 159257. bom bandits disposable penWebNov 30, 2024 · The article explores the photoluminescence properties of UV, near-UV and blue excited BaWO4: Eu3+ red phosphors are studied. The optical band gap narrowing is observed after adding Eu3+ ions. The excitation spectra exhibit a broad peak centred at 255 nm and several narrow peaks of Eu3+ ions at 362, 382, 395, 415 and 465 nm. gme vhf radio with dscWebBook description. Nitride Phosphors and Solid-State Lighting provides an in-depth introduction to the crystal chemistry, synthesis, luminescence, and applications of phosphor materials for solid-state lighting, mainly focusing on new nitride phosphors. Drawing on their extensive experimental work, the authors offer a multidisciplinary study of phosphor … gm ev tax creditWebMar 10, 2016 · Laser-driven phosphor-converted white light source for solid-state illumination Appl Opt. 2016 Mar 10;55 (8):1899-905. doi: 10.1364/AO.55.001899. Authors Anthony F George , Sara Al-waisawy , Jason T Wright , Wojciech M Jadwisienczak , Faiz Rahman PMID: 26974780 DOI: 10.1364/AO.55.001899 gm ev michiganWebJan 10, 2024 · The extensive use of solid-state luminescent materials has been made possible because the current generation of inorganic phosphors fulfills most of the application requirements: they have a range of excitation and emission wavelengths and bandwidths, high quantum efficiencies, outstanding chemical and thermal stabilities, and … bomb and bubblesWebRed LEDs with a high color purity and high color rendering index are often used to compensate for the lack of red-light components in current white LEDs. Therefore, the new type of garnet-structured high color purity red phosphor Y2−xSrAl4SiO12: xEu3+ was synthesized by the solid-state method. The band gap structure of the host matrix was … bomb and heavy sonic