Light-radiating semiconductor component with a luminescence conversion element
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Abstract
The light-radiating semiconductor component has a radiation-emitting semiconductor body and a luminescence conversion element. The semiconductor body emits radiation in the ultraviolet, blue and/or green spectral region and the luminescence conversion element converts a portion of the radiation into radiation of a longer wavelength. This makes it possible to produce light-emitting diodes which radiate polychromatic light, in particular white light, with only a single light-emitting semiconductor body. A particularly preferred luminescence conversion dye is YAG:Ce.
150 Citations
79 Claims
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1-33. -33. (canceled)
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34. A polychromatic light emitting semiconductor chip for mounting into a housing for light-emitting diodes, comprising:
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a layer sequence suitable for emitting electromagnetic radiation of a first wavelength range selected from a spectral region consisting of ultraviolet, blue, and green;
a luminescence conversion layer deposited on said semiconductor chip with at least one luminescent material, said luminescence conversion material being suitable for converting a radiation originating from the first wavelength range into radiation of a second wavelength range which is at least partially different from the first wavelength range, such that the semiconductor chip is capable of emitting polychromatic radiation comprising radiation of the first wavelength range and radiation of the second wavelength range. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. A method for producing a polychromatic light emitting semiconductor component having an LED housing and a light emitting semiconductor chip mounted in said housing, comprising the steps of:
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providing a light emitting semiconductor layer sequence suitable for emitting electromagnetic radiation of a first wavelength range selected from a spectral region consisting of ultraviolet, blue, and green;
depositing a luminescence conversion layer onto said semiconductor layer sequence having at least one luminescent material, said luminescence conversion material being suitable for converting a radiation originating from the first wavelength range into radiation of a second wavelength range which is at least partially different from the wavelength range; and
mounting said semiconductor layer sequence with the luminescence conversion layer into said LED housing. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79)
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Specification