A novel tunable Na2Ba6(Si2O7)(SiO4)2:Ce3+,Mn2+ phosphor with excellent thermal stability for white light emitting diodes

RSC Advances ◽  
2014 ◽  
Vol 4 (27) ◽  
pp. 14074-14080 ◽  
Author(s):  
Wenzhen Lv ◽  
Yongchao Jia ◽  
Qi Zhao ◽  
Mengmeng Jiao ◽  
Baiqi Shao ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Solid State Reaction ◽  
Light Emitting Diodes ◽  
Excellent Thermal Stability ◽  
Light Emitting ◽  
White Light Emitting Diodes ◽  
Co Doped

In this paper, Ce3+ doped and Ce3+,Mn2+ co-doped Na2Ba6(Si2O7)(SiO4)2 phosphors were synthesized via a high temperature solid-state reaction.

Study on the Morphology and Thermal Stability of Li2SrSiO4: Tb3+ Materials

2014 ◽  
Vol 989-994 ◽  
pp. 437-440 ◽  
Author(s):  
Pan Li You
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Solid State Reaction ◽  
Emission Intensity ◽  
Room Temperature ◽  
Light Emitting ◽  
White Light Emitting Diodes ◽  
Thermal Stability Of

A series of Tb3+-doped Li2SrSiO4:Tb3+phosphors were prepared by high temperature solid state reaction. The morphology and the thermal stability of Li2SrSiO4:Tb3+phosphors were discussed by SEM and PL measurements, respectively. The results showed that the morphology of Li2SrSiO4:Tb3+was changed from flower-like to rod-like with increasing Tb3+-doped content. Moreover, the emission intensity measured at 3500C almost maintain with constant compared with that measured at room temperature. The results showed that Li2SrSiO4:Tb3+phosphor might be a potential phosphor for white light-emitting diodes.

Novel bismuth activated blue-emitting phosphor Ba2Y5B5O17:Bi3+ with strong NUV excitation for WLEDs

2019 ◽  
Vol 7 (36) ◽  
pp. 11227-11233 ◽  
Author(s):  
Xiu Wang ◽  
Jia Wang ◽  
Xingyu Li ◽  
Haoyang Luo ◽  
Mingying Peng
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Solid State Reaction ◽  
Rare Earth Ion ◽  
Reaction Route ◽  
Light Emitting ◽  
Solid State Reaction Route ◽  
White Light Emitting Diodes

In this work, a series of novel non-rare-earth ion activated phosphors Ba2Y5−xB5O17:xBi3+ for white light-emitting diodes (WLEDs) was prepared via the high temperature solid state reaction route.

Synthesis and Luminescence Properties of Na3YSi2O7:Sm3+, Eu3+ Phosphor

2014 ◽  
Vol 633-634 ◽  
pp. 306-309 ◽  
Author(s):  
Jia Yue Sun ◽  
Liu Han ◽  
Qiu Mei Di ◽  
Qi Guang Xu
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Solid State Reaction ◽  
Emission Spectra ◽  
Potential Candidate ◽  
Photoluminescence Excitation ◽  
Light Emitting ◽  
White Light Emitting Diodes

Novel Na3YSi2O7: Sm3+, Eu3+phosphors for white light-emitting diodes were prepared by high-temperature solid-state reaction. The photoluminescence excitation and emission spectra, energy transfer from Eu2+to Tb3+are investigated in detail. The current research suggests that Na3YSi2O7: Sm3+, Eu3+phosphor is a potential candidate for application in Phosphor-converted LEDs.

scholarly journals Color Rendering Index Thermal Stability Improvement of Glass-Based Phosphor-Converted White Light-Emitting Diodes for Solid-State Lighting

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Chun-Chin Tsai
Keyword(s):  
Thermal Stability ◽  
Solid State ◽  
White Light ◽  
Light Emitting Diodes ◽  
Solid State Lighting ◽  
Light Emitting ◽  
Warm White Light ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

High color rendering index performance has been required for phosphor-converted warm-white light-emitting diodes (PC-WWLEDs) in lighting industry. The characteristics of low-temperature fabricated phosphor (yellow: Ce3+:YAG, green: Tb3+:YAG, and red: CaAlClSiN3:Eu2+) doped glass were presented for applications to high color rendering index warm-white-light-emitting diodes. Color coordinates (x, y) = (0.36, 0.29), quantum yield (QY) = 55.6%, color rending index (CRI) = 85.3, and correlated color temperature (CCT) = 3923 K were characterized. Glass-based PC-WWLEDs was found able to maintain good thermal stability for long-time high-temperature operation. QY decay, CRI remenance, and chromaticity shift were also analyzed for glass- and silicone-based high-power PC-WLEDs by thermal aging at 150°C and 250°C for industrial test standard’s aging time 1008 hours. Better than the silicone’s, thermal stability of glass-based PC-WLEDs has been improved. The resulted high color rendering index (CRI) glass phosphor potentially can be used as a phosphor layer for high-performance and low-cost PC-WLEDs used in next-generation indoor solid-state lighting applications.

A novel near-ultraviolet (NUV) converting blue-violet Ca2−xAlMg0.5Si1.5O7:xCe3+ phosphor for white light-emitting-diodes (w-LEDs)

RSC Advances ◽  
2016 ◽  
Vol 6 (3) ◽  
pp. 2368-2373 ◽  
Author(s):  
Cong Zhao ◽  
Da-chuan Zhu ◽  
Ming-jing Tu ◽  
Min Huang ◽  
Ling-ling Peng ◽  
...  
Keyword(s):  
Solid State ◽  
White Light ◽  
Solid State Reaction ◽  
Light Emitting Diodes ◽  
Solid State Reaction Method ◽  
Light Emitting ◽  
Reaction Method ◽  
Near Ultraviolet ◽  
White Light Emitting Diodes

Ce3+ doped aluminosilicate phosphors (Ca2−xAlMg0.5Si1.5O7:xCe3+, x = 0.015–0.075) for white NUV w-LEDs were synthesized by a solid-state reaction method at 1250 °C.

Sign in / Sign up

Export Citation Format

Share Document