A promising all-inorganic green-emitting YAGG:Ce phosphor-in-glass for laser lighting

Abstract

The modular LD was packaged with a YAGG:Ce PiG prototype with bright green light observed, which provides a new possibility for long-term and stable LDs.

Ultrahigh Power Density LuAG:Ce Green Converters For High‐Luminance Laser‐Driven Solid State Lighting

“…This is because the number of luminescent centers increases with increasing concentration and the glass component necessarily decreases, which leads to an increase in the nonradiative treatment of the phosphor converter and therefore a decrease in the QE of the 50 wt% sample. [16,23,32] Based on the above optical characteristics, we can find that 40 wt% LuAG:Ce-PiG is prepared at sintering temperature of 1030 °C has the optimal optical properties.…”

“…[5][6][7][8] Accumulation of large amounts of heat in the fluorescent converter, leading to the notorious thermal quenching phenomenon, which then affects the development of LD lighting. [9,10] Currently, in order to address the thermal extinction phenomenon that occurring in LD lighting for achieving better luminescence, numerous all-inorganic color converters including single-crystal phosphors , [11][12][13][14] phosphor in glasses (PiGs), [15][16][17][18] phosphor ceramics, [19][20][21] and phosphor in glass films (PiFs) [8,[22][23][24][25][26] are being extensively studied for their different properties. Among the aforementioned phosphor converters, although single-crystal phosphors and phosphor ceramics are prepared with excellent thermal stability, they are necessarily expensive due to their complicated process and high cost, which limits their popularity in the market.…”

An orange-yellow-emitting Lu2−xMg2Al2−yGaySi2O12:xCe3+ phosphor-in-glass film for laser-driven white light

“…[16][17][18][19] From a design point of view, it is preferrable to use a Ce 3+ -activated garnet-type phosphor with nanosecond range decay as a color converter, but such phosphors with abundant red-emissive components are rare. 17,20 Furthermore, red-emitting phosphors should be fabricated into an all-inorganic bulk/film form to withstand high-density blue laser irradiation, but the available all-inorganic material forms with high performance are also limited and are mostly difficult or costly to prepare. [21][22][23][24][25][26][27] Aiming for laser-driven high-color-quality white lighting, herein, we pay attention to a new kind of Ce 3+ -activated garnet-structured solid-solution phosphor, Lu 2Àx Mg 2 Al 2Ày -Ga y Si 2 O 12 :xCe 3+ (x = 0.02-0.14, y = 0.00-1.00, abbreviated as LMAGS:Ce 3+ ), and its all-inorganic composite by co-sintering it together with glass in the form of a phosphor-in-glass (PiG) film loaded on a high-thermal-conductivity sapphire plate (SP).…”

“…16–19 From a design point of view, it is preferrable to use a Ce 3+ -activated garnet-type phosphor with nanosecond range decay as a color converter, but such phosphors with abundant red-emissive components are rare. 17,20 Furthermore, red-emitting phosphors should be fabricated into an all-inorganic bulk/film form to withstand high-density blue laser irradiation, but the available all-inorganic material forms with high performance are also limited and are mostly difficult or costly to prepare. 21–27…”

High brightness and vibronic luminescent behavior of YAG:Mn4+/Ca2+ red phosphor for preparing phosphor-in-glass in white LED

“…Thus, the emergence of phosphor-in-glass (PiG) may meet the above requirement, 9–12 and this type of material possesses more advantages compared to phosphor powders. However, based on the consolidation of phosphor powder into a glass matrix, avoiding corrosion between the components at high temperatures must be considered, 13,14 which requires the high chemical stability of phosphor in the glass melt. At present, most commercial red phosphor is focused mainly on silicon-containing compounds, such as CaAlSiN 3 :Eu 2+ , that exhibit excellent luminescence properties but undesirable chemical stability in high-temperature glass melt.…”