Effects of (Ba,Ca)ScO2F:Bi3+,K+ phosphor particle size on color uniformity white light-emitting diodes

Investigation of Remote-Phosphor White Light-Emitting Diodes with Multi-Phosphor Layers

Novel Eu3+-doped red-emitting phosphor Gd2Mo3O9 for white-light-emitting-diodes (WLEDs) application

Xiaoxia Zhao a,b, Xiaojun Wang a,∗, Baojiu Chen a,c, Qingyu Meng a,b, Weihua Di a,b, Guozhong Ren a,b, Yanmin Yang a,b a Lab of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, PR China b Graduate School of Chinese Academy of Sciences, Beijing 100039, PR China c Department of Physics, Dalian Maritime Univer...

Highly efficient phosphor-converted white organic light-emitting diodes with moderate microcavity and light-recycling filters.

We demonstrate the combined effects of a microcavity structure and light-recycling filters (LRFs) on the forward electrical efficiency of phosphor-converted white organic light-emitting diodes (pc-WOLEDs). The introduction of a single pair of low- and high-index layers (SiO(2)/TiO(2)) improves the blue emission from blue OLED and the insertion of blue-passing and yellow-reflecting LRFs enhances...

Highly Efficient White Light-emitting Diodes Based on Layered Quantum Dot-Phosphor Nanocomposites as Converting Materials

This paper reports on the enhanced photoluminescence (PL) of nanocomposites through the layered structuring of phosphor and quantum dot (QD). Green phosphor of Sr2SiO4:Eu, red QDs of CdSe/CdS/CdZnS/ZnS core-multishell, and thermo-curable resin were used for this study. Two kinds of composite (layered and mixed) were prepared, and the schemes for optical energy transfer between QD and phosphor w...

Toward scatter-free phosphors in white phosphor-converted light-emitting diodes

Scatter-free phosphors promise to suppress the scattering loss of conventional micro-size powder phosphors in white phosphor-converted light-emitting diodes (pc-LEDs). Large micro-size cube phosphors (~100 μm) are newly designed and prepared as scatter-free phosphors, combining the two scatter-free conditions of particles based on Mie's scattering theory; the grain size or grain boundary was sm...