Highly efficient large-area ultrathin phosphor-glass composites fabricated by tape-casting for super-bright LED lights DOI Creative Commons
Fei Tang, Chenyang Li, Yimin Zhou

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Авг. 1, 2024

Abstract Driven by the demand for super-bright LED lights cars, buses, and trucks, highly efficient large-area ultrathin phosphor-glass composites (PGC) with exceptional thermal dissipation capabilities were fabricated a combined technique of tape-casting + low-temperature cofiring process. Two kinds (100 μm thick) PGC plates uniformly incorporated YAG:Ce CaAlSiN3:Eu2+ phosphor particles large size 1044×45 mm successfully prepared. At room temperature, photoluminescence quantum yields (PLQY) 98.6% 80% achieved former latter glasses, respectively. Moreover, color tunable emissions yielded in varying weight ratio different phosphors. Finally, light-emitting diodes (LEDs) encapsulated demonstrated to exhibit outstanding luminous performance. When exposed blue laser irradiation, prepared glasses heightened resistance radiation. These unparalleled could offer an unprecedented solution commercial applications preparation super bright car lights.

Язык: Английский

Full-Visible-Spectrum White LEDs Enabled by a Blue-Light-Excitable Cyan Phosphor DOI
Xiaohong Chen, Xiaoyong Huang

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(42), С. 57365 - 57376

Опубликована: Окт. 12, 2024

Efficient blue-light-excitable broadband cyan-emitting phosphors may yield full-visible-spectrum white light-emitting diodes (WLEDs) with ultrahigh color rendering (Ra > 95). However, this requires closing the "cyan gap" in 480–520 nm region of visible spectrum, which is challenging. Herein, a well-performed garnet phosphor Ca2LuAlGa2Si2O12:Ce3+ (CLAGSO:Ce3+) reported. Under 430 excitation, optimal CLAGSO:5%Ce3+ compound exhibits cyan emission (peak, 496 nm; bandwidth, 102 nm) high internal quantum efficiency 85.6% and an excellent thermal resistance performance (69.1% at 423 K). Importantly, as-prepared provides sufficient enables filling well-known so-called between blue LED chip commercial Y3Al5O12:Ce3+ (YAG:Ce3+) yellow phosphor. Impressively, WLED device fabricated sample shows low correlated temperature (4053 K) index = 96.6), as well luminous efficacy (74.09 lm W–1). These results highlight importance blue-excited gap enabling human-centric warm devices for high-quality solid-state lighting.

Язык: Английский

Процитировано

27
Highly efficient and thermally stable broadband green-emitting BaY2Sc2Al2SiO12:Ce3+ phosphors enabling warm-white LEDs with high luminous efficacy and high color rendering index DOI
Xiaoyuan Chen, Xiaoyong Huang

Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(41), С. 16741 - 16750

Опубликована: Янв. 1, 2024

A broadband green-emitting BaY 2 Sc Al SiO 12 :Ce 3+ garnet phosphor enables warm-white LEDs with high R a of 93.3 and LE 105.3 lm W −1 .

Язык: Английский

Процитировано

19
Hexagonal rod-like Eu3+ doped CaMoO4 phosphors: Structural, photoluminescence and photometric properties for display device applications DOI

N.N. Munirajappa,

R.B. Basavaraj,

D.P. Aarti

и другие.

Journal of Molecular Structure, Год журнала: 2024, Номер 1319, С. 139331 - 139331

Опубликована: Июль 20, 2024

Язык: Английский

Процитировано

18
A well-performed green-emitting Lu1.5Ca1.5Al3.5Si1.5O12:Ce3+ garnet phosphor for high-quality pc-WLEDs DOI
Xiaoyong Huang,

Jingming Chan,

Xiaohong Chen

и другие.

Ceramics International, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Язык: Английский

Процитировано

7
Ce3+ single-doped YAG rare earth powder phosphors via spark plasma sintering and its application in solar cells DOI

Weixin Zhou,

Chaogang Lou

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Embedding Te(IV) into a Robust Sn(IV)-Based Metal Halide for Deep-Red Emission DOI

Zhihao Deng,

Junhao Ma,

Yuqi Peng

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Organic-inorganic hybrid Sn(IV)-based metal halides have received wide attention due to their excellent structural stability. However, realizing red-emitting with high stability and efficient photoluminescence (PL) efficiency remains challenging. Here, a stable organic-inorganic halide (C8H10O2N)2SnCl6 zero-dimensional (0D) structure has been obtained, which, however, displays poor PL properties the inert expression of Sn4+-4d10 electrons intrinsic indirect band gap feature. To address above challenges, Te4+ an active 5s2 lone pair is embedded into lattice (C8H10O2N)2SnCl6, as result, 5%Te4+-doped direct exhibits broadband deep-red emission (∼688 nm) (∼53%). Experimental calculated results reveal that embedding can effectively regulate facilitate transformation from structure, thereby leading radiative recombination. Benefiting merits, high-efficiency white light-emitting diode (WLED) fabricated using Te4+-doped ultrahigh color rendering index (CRI) up 94.5, suggesting great potential this material for solid-state lighting. This work provides significant insight design highly phosphors halides.

Язык: Английский

Процитировано

0
A novel Dy3+ activated Ba4La6O(SiO4)6 phosphor with robust thermal stability for WLED applications DOI

Qiong Xi,

Tao Yin,

You Zhang

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179241 - 179241

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0
A Blue Sr3(PO4)2·12KSrPO4:Eu2+ Phosphor with a High Quantum Efficiency and Excellent Anti-Thermal Quenching DOI
Yue He,

Yuya Wang,

Weiwei Fu

и другие.

ACS Applied Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 26, 2025

Язык: Английский

Процитировано

0
Efficient broadband green-emitting Ca2LuScGaAlSi2O12:Ce3+ garnet phosphor towards high-color-rendering full-spectrum WLED lighting DOI

Wanjin Liang,

Yimei Li, Fang Song

и другие.

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Enhanced quantum efficiency and thermal stability of cyan-green emitting BaLu2Al3ScGeO12: Ce3+, Si4+ phosphor via cation substitution for WLEDs DOI

Taifang Zhang,

Dan Zhang, Zeyu Gao

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 181133 - 181133

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0