High-efficient, spherical and thermal-stable carbon dots@silica fluorescent composite as rare earth-free phosphors for white LED

2020 ◽  
Vol 46 (10) ◽  
pp. 14706-14712
Author(s):  
Xinguo Zhang ◽  
Zishan Sun ◽  
Zhenpng Zhu ◽  
Jiabao Luo ◽  
Zhanchao Wu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Carbon Dots ◽  
White Led ◽  
Stable Carbon ◽  
High Efficient ◽  
Thermal Stable

scholarly journals High efficient white light emission of rare earth-free MnO–SnO–ZnO–P2O5 glass

2011 ◽  
Vol 119 (1394) ◽  
pp. 726-730 ◽  
Author(s):  
Hirokazu MASAI ◽  
Takumi FUJIWARA ◽  
Syuji MATSUMOTO ◽  
Yoshihiro TAKAHASHI ◽  
Kenichiro IWASAKI ◽  
...  
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
High Efficient

Synthesis of high-efficient red carbon dots for pH detection

2019 ◽  
Vol 215 ◽  
pp. 116640 ◽  
Author(s):  
Jiaxi Huang ◽  
Youling He ◽  
Zhenbang Zhang ◽  
Bingfu Lei ◽  
Weibin Wu
Keyword(s):  
Carbon Dots ◽  
High Efficient ◽  
Ph Detection

Handling and Fixation of Permanent Magnets

2013 ◽  
Vol 769 ◽  
pp. 3-10 ◽  
Author(s):  
Jan Tremel ◽  
Benjamin Hofmann ◽  
Florian Risch
Keyword(s):  
Rare Earth ◽  
Permanent Magnet ◽  
Electric Vehicles ◽  
Permanent Magnets ◽  
Electrical Machines ◽  
Research Projects ◽  
Fixation Methods ◽  
High Efficient ◽  
The Family

Due to rapid developments within the family of rare-earth materials innovative electrical machines can nowadays be used as high efficient generators in various power, as well as rugged constructed machines for automobile battery based propulsion in hybrid and full electric vehicles. The production of different motor concepts spread into different design variants and creates complex variations especially regarding the rotor. Deriving from various research projects, the handling of the permanent magnet components is investigated, including the development of new assembly and fixation methods.

scholarly journals Microstructural and optical properties of rare earth ions doped TiO2 for potential white LED applications

2018 ◽  
Vol 29 (19) ◽  
pp. 16824-16835 ◽  
Author(s):  
Mohamed Zikriya ◽  
Y. F. Nadaf ◽  
C. Manjunath ◽  
C. G. Renuka
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Rare Earth Ions ◽  
White Led ◽  
Doped Tio2

Application of Nitride and Oxynitride Compounds to Various Phosphors for White LED

2008 ◽  
Vol 403 ◽  
pp. 15-18 ◽  
Author(s):  
Kyota Uheda
Keyword(s):  
Rare Earth ◽  
Thermal Quenching ◽  
Rare Earth Ions ◽  
White Led ◽  
Green Phosphor ◽  
Strong Emission ◽  
Red Phosphor ◽  
Blue Phosphor ◽  
Uv Led ◽  
Intense Emission

Multiternary nitride and oxynitride compounds doped with rare earth ions, such as Eu2+ and Ce3+ have been enthusiastically applied as various phosphors to white LED. New red and green phosphors, CaAlSiN3:Eu and Ba3Si6O12N2:Eu, have been successfully synthesized, recently. The red phosphor has intense emission around 650 nm under two different irradiations at 405 and 455 nm from blue- and near UV-LED chips, respectively; while strong emission is observed around 520 nm from the green phosphor. Both phosphors also show small thermal quenching over the temperatures up to 150 °C. In addition, both LaSi3N5:Ce and La3Si8O4N11:Ce in lanthanum silicon nitride and oxynitride were examined as candidates for a blue phosphor in white LED with near UV-LED chip.

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