Evaluation of new color metrics: guidelines for developing narrow-band red phosphors for WLEDs

2016 ◽  
Vol 4 (36) ◽  
pp. 8326-8348 ◽  
Author(s):  
Ji Hye Oh ◽  
Yun Jae Eo ◽  
Hee Chang Yoon ◽  
Young-Duk Huh ◽  
Young Rag Do
Keyword(s):  
Optical Properties ◽  
Narrow Band ◽  
Red Phosphors

In this review, we summarize the recent findings on novel narrow-band red phosphors, the improved color and visual energy properties of these phosphors, and their ability to improve the optical properties of corresponding warm white pc-WLED lightings.

Efficient and ultra-thermally stable Eu3+ and Sm3+ activated narrow band red/deep red emitting phosphors and their versatile applications

2021 ◽  
Author(s):  
Priyadarshini Pradhan ◽  
Savita Priya ◽  
R. Marikumar ◽  
Kasturi Singh ◽  
Sivakumar Vaidyanathan
Keyword(s):  
Optical Properties ◽  
Plant Growth ◽  
Narrow Band ◽  
White Led ◽  
Thermally Stable ◽  
Latent Fingerprint ◽  
Red Phosphors

A succession of Eu3+ activated Na2Y4(WO4)7 (NYW) red phosphors were synthesised and studied their optical properties in details for white LED, latent fingerprint and plant growth applications. The phosphors crystallised...

scholarly journals Enhanced luminescence properties of Ca1+xSr2−xAl2O6:Eu3+ (0 ≤ x ≤ 1) red phosphors based on composition modulation

RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12981-12989
Author(s):  
Biao Shen ◽  
Jianghang Xu ◽  
Qinan Mao ◽  
Jiasong Zhong
Keyword(s):  
Optical Properties ◽  
Quantum Efficiency ◽  
Luminescence Properties ◽  
Composition Modulation ◽  
Red Phosphors ◽  
Potential Applications ◽  
Enhanced Luminescence

A series of Ca1+xSr2−xAl2O6:Eu3+ (0 ≤ x ≤ 1) red-emitting phosphors with adjustable optical properties and excellent quantum efficiency was developed for potential applications in warm WLEDs.

Pressure-controlled synthesis of high-performance SrLiAl3N4:Eu2+ narrow-band red phosphors

2018 ◽  
Vol 6 (38) ◽  
pp. 10174-10178 ◽  
Author(s):  
Mu-Huai Fang ◽  
Yi-Ting Tsai ◽  
Hwo-Shuenn Sheu ◽  
Jyh-Fu Lee ◽  
Ru-Shi Liu
Keyword(s):  
Thermal Stability ◽  
High Performance ◽  
Narrow Band ◽  
Controlled Synthesis ◽  
Excellent Thermal Stability ◽  
Red Phosphors ◽  
Pressure Controlled ◽  
Emission Bandwidth ◽  
Narrow Emission

SrLiAl3N4:Eu2+ (SLA) phosphors have gained increasing attention worldwide due to their narrow emission bandwidth and excellent thermal stability.

Structural and Optical Properties of Ca0.88TiO3∶0.12Eu3+Red Phosphors

2014 ◽  
Vol 35 (8) ◽  
pp. 932-938
Author(s):  
吴义炳 WU Yi-bing ◽  
孙卓 SUN Zhuo ◽  
阮凯斌 RUAN Kai-bin ◽  
刘银春 LIU Yin-chun ◽  
张洪 ZHANG Hong
Keyword(s):  
Optical Properties ◽  
Structural And Optical Properties ◽  
Red Phosphors

Structural dependence of the optical properties of narrow band gap thiophene–thiadiazoloquinoxaline derivatives and their application in organic photovoltaic cells

2019 ◽  
Vol 43 (13) ◽  
pp. 5202-5213 ◽  
Author(s):  
Cristiana Costa ◽  
Joana Farinhas ◽  
João Avó ◽  
Jorge Morgado ◽  
Adelino M. Galvão ◽  
...  
Keyword(s):  
Optical Properties ◽  
Dft Calculations ◽  
Narrow Band ◽  
Photovoltaic Cells ◽  
Organic Photovoltaic ◽  
Organic Photovoltaic Cells ◽  
Absorption Bands ◽  
Nir Absorption ◽  
Quinoxaline Derivatives ◽  
New Compounds

The structural causes for NIR absorption bands on new [1,2,5]thiadiazolo[3,4-g]quinoxaline derivatives were determined on the basis of DFT calculations and organic photovoltaic cells incorporating the new compounds were fabricated.

A red phosphor BaTiF6:Mn4+: reaction mechanism, microstructures, optical properties, and applications for white LEDs

2014 ◽  
Vol 43 (25) ◽  
pp. 9414-9418 ◽  
Author(s):  
Xianyu Jiang ◽  
Zhen Chen ◽  
Shaoming Huang ◽  
Jiaguo Wang ◽  
Yuexiao Pan
Keyword(s):  
Optical Properties ◽  
Reaction Mechanism ◽  
White Light ◽  
Red Phosphor ◽  
White Leds ◽  
Red Phosphors ◽  
Warm White Light ◽  
Color Rendering Index ◽  
Color Rendering

Red phosphors BaTiF6:Mn4+ were obtained by etching Ti(OC4H9)4 and TiO2 with BaF2 in HF and a KMnO4 solution. The WLED fabricated with BaTiF6:Mn4+ exhibits a “warm” white light with a color rendering index of 93.13.

Preparation and Optical Properties Research of One Dimensional Narrow Band Photonic Crystal

2015 ◽  
Vol 52 (11) ◽  
pp. 112304
Author(s):  
杜倩倩 Du Qianqian ◽  
王文军 Wang Wenjun ◽  
李淑红 Li Shuhong ◽  
刘云龙 Liu Yunlong ◽  
史强 Shi Qiang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Photonic Crystal ◽  
Narrow Band ◽  
One Dimensional

scholarly journals Optical Properties of the Narrow-Band Ferroelectrics: First Principle Calculations

2015 ◽  
Vol 483 (1) ◽  
pp. 43-52 ◽  
Author(s):  
Husnu Koc ◽  
Sevket Simsek ◽  
Amirullah M. Mamedov ◽  
Ekmel Ozbay
Keyword(s):  
Optical Properties ◽  
Narrow Band ◽  
First Principle ◽  
First Principle Calculations

Study of Electronic and Optical Properties of PbS

2012 ◽  
Vol 476-478 ◽  
pp. 1154-1158
Author(s):  
Jin Ju Du ◽  
Wei Li
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Absorption Coefficient ◽  
First Principles ◽  
Narrow Band ◽  
Energy Band Structure ◽  
First Principles Calculations ◽  
Density Of State ◽  
Reflectivity Spectrum ◽  
Electronic And Optical Properties

The electronic and optical properties of the lead sulfide are studied using first-principles calculations. The energy band structure and density of state of PbS are calculated. The results suggest that PbS exhibit a narrow band gap. The Mulliken analysis shows that the Pb-S bond is ionic. The dielectric function, absorption coefficient, reflectivity spectrum, refractive index and extinction coefficient are calculated for radiation up to 35eV. We have show that S (3p) electrons states and Pb (6p) electrons states play an important role in these transitions.

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