Patent ID: 9099597
Filing Date: 2015-08-04
Classification: H01L

Abstract:
1. A light emitting diode element comprising; a semiconductor light emitting part emitting light by recombination of electrons and holes; and a porous SiC part which is formed in cellular state and has an interface between itself and atmosphere in its interior, and consists of single crystal 6H-type SiC doped with N and B, and emits visible light caused by donor-acceptor-pair emission for dopants of N and B when excited by light from the semiconductor light emitting part; a bulk SiC part which consists of a bulk state of single crystal 6H-type SiC doped with N and B, and emits visible light caused by donor-acceptor-pair emission for dopants of N and B at longer wavelengths than the porous SiC part when excited by light from the semiconductor light emitting part, wherein a doping concentration of B and N in the porous SiC part is between 10 wherein, when illuminated by light having a wavelength of 325 nm, the porous SiC part emits light of wavelengths between 350 nm and 800 nm and said light has an intensity peak within 400 nm-500 nm, and wherein, when illuminated by light having a wavelength of 325 nm, the bulk SiC part emits light of wavelengths between 500 nm and 800 nm and said light has an intensity peak at about 600 nm.