Wavelength-converting light-emitting devices

A light-emitting device comprising:

• a light-generating region adapted to generate light;
• a wavelength-converting region capable of absorbing light generated by the light-generating region having a total power of greater than 0.5 Watts and emitting light having a different wavelength than a wavelength of the light generated by the light-generating region;
• and
• a thermally conductive region in contact with the wavelength-converting region and capable of conducting heat generated in the wavelength-converting region, the thermally conductive region comprising a material having a thermal conductivity greater than a thermal conductivity of the wavelength-converting region.

A method of operating a light-emitting device comprising:

• generating light in a light-generating region of an LED having a total power of greater than 0.5 Watts;
• absorbing light generated by the light-generating region in a wavelength-converting region and emitting light having a wavelength different than a wavelength of the light generated in the light-generating region;
• and
• emitting light from the light-emitting device,
• wherein the device has an operating lifetime of greater than 2,000 hours.

A method of forming a light-emitting device, the method comprising:

• forming a light-generating region adapted to generate light;
• forming a wavelength-converting region capable of absorbing light generated by the light-generating region and emitting light having a different wavelength than a wavelength of the light generated by the light-generating region;
• and
• forming a thermally conductive region in contact with the wavelength-converting region and capable of conducting heat generated in the wavelength-converting region, the thermally conductive region comprising a material having a thermal conductivity greater than a thermal conductivity of the wavelength-converting region,
• wherein the light-emitting device is adapted to emit light having a total power of greater than 0.5 Watts.