Optoelectronic device with light-emitting diode with extraction enhancement
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsFrançois Templier, Salim Boutami
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Abstract
An optoelectronic device including an active area capable of supplying an electromagnetic radiation and sandwiched between first and second semiconductor layers, the first semiconductor layer delimiting a surface, the optoelectronic device further including a diffraction grating capable of extracting the electromagnetic radiation from the first semiconductor layer, the diffraction grating including holes extending in the first semiconductor layer from said surface, the width of the holes measured in a plane parallel to said surface increasing from a central portion of the diffraction grating to a peripheral portion of the diffraction grating.
Claims8
An optoelectronic device comprising an active area capable of supplying an electromagnetic radiation and sandwiched between first and second semiconductor layers, the first semiconductor layer delimiting a surface, the optoelectronic device further comprising a diffraction grating capable of extracting the electromagnetic radiation from the first semiconductor layer, the diffraction grating comprising holes extending in the first semiconductor layer from said surface, the width of the holes measured in a plane parallel to said surface increasing from a central portion of the diffraction grating to a peripheral portion of the diffraction grating, the holes being arranged in rows and in columns.
A method of manufacturing an optoelectronic device comprising an active area capable of supplying an electromagnetic radiation sandwiched between first and second semiconductor layers, the first semiconductor layer delimiting a surface, the method comprising forming a diffraction grating capable of extracting the electromagnetic radiation from the first semiconductor layer, the diffraction grating comprising holes extending in the first semiconductor layer from said surface, the width of the holes measured in a plane parallel to said surface increasing from a central portion of the diffraction grating to a peripheral portion of the diffraction grating, the holes being arranged in rows and in columns.
Dependencies are inferred from the claim text.