YAGG:Ce transparent ceramics with high luminous efficiency for solid-state lighting application

Solid-State Lighting with High Brightness, High Efficiency, and Low Cost

1 Graduate Institute of Precision Engineering, National Chung Hsing University, Taichung 402, Taiwan 2 Photonics Technology Center, Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 3Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan 4Cent...

APPLIED PHYSICS REVIEWS—FOCUSED REVIEW High-efficiency AlGaInP light-emitting diodes for solid-state lighting applications

AlGaInP lattice matched to GaAs is suited for light-emitting diodes ~LEDs! operating in the red, orange, yellow, and yellow–green wavelength range. Such long-wavelength visible-spectrum devices will play an important role in solid-state lighting applications. This review discusses the major classes of AlGaInP device structures, including absorbing-substrate ~AS! LEDs, absorbing substrate LEDs e...

Materials for Solid State Lighting

Dramatic improvement in the efficiency of inorganic and organic light emitting diodes (LEDs and OLEDs) within the last decade has made these devices viable future energy efficient replacements for current light sources. However, both technologies must overcome major technical barriers, requiring significant advances in material science, before this goal can be achieved. Attention will be given ...

Hybrid Solid-State Lighting Design

The transition from incandescent lighting to more energyefficient options is projected as a major opportunity for solid-state lighting (SSL.) The current prevailing technology for white-light SSL uses a nitride semiconductor blue LED combined with a downconverting YAG:Ce yellow phosphor. The residential use of LED lights presents challenges beyond efficiency, because of very-high color-renderin...

Basic Research Needs for Solid - State Lighting