High-power phosphor-converted light-emitting diodes based on III-Nitrides

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Illumination with solid state lighting technology (2002, background): “RGB mixing is the most efficient way to make white light from LEDs since there is no quantum deficit (arising from the Stokes shift characteristic of photonic energy down-conversion of the phosphor [ 22 ]), and offers infinitely graduated color and white point control.”
Status and Future of High-Power Light-Emitting Diodes for Solid-State Lighting (2007, methodology): “Suitable white light spectra from LEDs are possible using a two-phosphor approach, wherein a yellow or green phosphor is combined with a red one, all pumped by a single blue LED [53].”
Light emitting diodes reliability review (2012, background): “CRI > 80 is regarded as good; in the 1970s is regarded as plain or acceptable [169,171].”
Research challenges to ultra‐efficient inorganic solid‐state lighting (2007, methodology): “Emission can be red-shifted by partially substituting Gd for Y, although a high concentration of Gd also causes strong thermal quenching of quantum efficiency [58].”
A Review on the Physical Mechanisms That Limit the Reliability of GaN-Based LEDs (2010, background): “The ESD robustness of GaN-based LEDs can be therefore optimized by increasing the Si-doping concentration close to the active region of the devices [ 22 ].”