摘要:
The invention relates to an edge-emitting semiconductor laser comprising a semiconductor body (10), which comprises a waveguide region (4), wherein the waveguide region (4) comprises a first waveguide layer (2A), a second waveguide layer (2B) and an active layer (3) arranged between the first waveguide layer (2A) and the second waveguide layer (2B) and serving for generating laser radiation (5), and the waveguide region (4) is arranged between a first cladding layer (1A) and a second cladding layer (1B) disposed downstream of the waveguide region (4) in the growth direction of the semiconductor body (10). The waveguide region (4) has a thickness d of 400 nm or less, and an emission angle of the laser radiation (5) emerging from the semiconductor body (10) in a direction parallel to the layer plane of the active layer (3) and the emission angle of the laser radiation (5) emerging from the semiconductor body (10) in a direction perpendicular to the layer plane of the active layer (3) differ from one another by less than a factor of 3.
摘要:
An optoelectronic component contains an epitaxial layer sequence (6) based on a nitride compound semiconductor having an active layer (4) and, wherein the epitaxial growth substrate (1) comprises Al1-xGaxN, where 0
摘要翻译:光电子部件包含基于具有有源层(4)的氮化物半导体的外延层序列(6),并且其中外延生长衬底(1)包括Al 1-x Ga x N,其中0
摘要:
A semiconductor light source is provided, the semiconductor light source having a primary radiation source (1) which, when the semiconductor light source is operated, emits electromagnetic primary radiation (5) in a first wavelength range, and having a luminescence conversion module (2) into which primary radiation (5) emitted by the primary radiation source (1) is fed. The luminescence conversion module (2) contains a luminescence conversion element (6) which, by means of a luminescent material, absorbs primary radiation (5) from the first wavelength range and emits electromagnetic secondary radiation (15) in a second wavelength range. The luminescence conversion element (6) is arranged on a heat sink (3) at a distance from the primary radiation source (1). It has a reflector surface (7, 71, 72) which reflects back into the luminescence conversion element (6) primary radiation (5) which passes through the luminescence conversion element (6) and is not absorbed thereby and/or reflects secondary radiation (15) in the direction of a light coupling-out surface (601) of the luminescence conversion element (6).
摘要:
A method for producing an optoelectronic component is disclosed. The method includes the steps of providing a substrate, applying a semiconductor layer sequence to the substrate, applying at least two current expansion layers to the semiconductor layer sequence, applying and patterning a mask layer, patterning the second current expansion layer by means of an etching process during which sidewalls of the mask layer are undercut, patterning the first current expansion layer by means of an etching process during which the sidewalls of the mask layer are undercut at least to a lesser extent than during the patterning of the second current expansion layer, and removing the mask layer.
摘要:
A light-emitting device, comprising: a radiation source (5), which emits radiation having a first wavelength, an optical waveguide (10), into which the radiation emitted by the radiation source is coupled, and a converter material (15), which converts the radiation transported through the optical waveguide (10) into light (20) having a second, longer wavelength. A light-emitting device of this type can have an improved light conversion efficiency.
摘要:
A radiation-emitting and/or -receiving semiconductor component comprising a semiconductor body (1), which has an active zone (2) provided for radiation generation or for radiation reception, a lateral main direction of extent and a main area, and also a protective layer (6) arranged on the main area and a contact (5) arranged on the main area, the protective layer (6) being spaced apart from the contact in the lateral direction. A method for the application of a contact to a semiconductor body (1) is also disclosed.
摘要:
A radiation-emitting semiconductor component has an improved radiation efficiency. The semiconductor component has a multilayer structure with an active layer for generating radiation within the multilayer structure and also a window having a first and a second main surface. The multi-layer structure adjoins the first main surface of the window. At least one recess, such as a trench or a pit, is formed in the window from the second main surface for the purpose of increasing the radiation efficiency. The recess preferably has a trapezoidal cross section tapering toward the first main surface and can be produced for example by sawing into the window.
摘要:
What is specified is an edge emitting semiconductor laser chip comprising a carrier substrate (1), an interlayer (2) promoting adhesion between the carrier substrate (1) and a component structure (50) of the edge emitting semiconductor laser chip, and the component structure (50) comprising an active zone (5) provided for generating radiation.
摘要:
An optoelectronic component having a semiconductor chip containing a semiconductor layer sequence (6) with a radiation-emitting active zone (4), the semiconductor layer sequence (6) having sidewalls (10). A connection contact (9) is provided for impressing current into the active zone. A first current expansion layer (7) adjoins a semiconductor layer (5) of the semiconductor layer sequence (6) and a second current expansion layer (8) is provided between the semiconductor layer sequence (6) and the connection contact (9). The first current expansion layer (7) has a larger sheet resistance than the second current expansion layer (8) and forms an ohmic contact with the adjoining semiconductor layer (5). The second current expansion layer (8) is applied to a partial region of the first current expansion layer (7) which is at a distance from the sidewalls (10).
摘要:
An optical semiconductor device with a multiple quantum well structure, in which well layers and barrier layers comprising various types of semiconductor layers are alternately layered, in which device well layers (6a) of a first composition based on a nitride semiconductor material with a first electron energy and barrier layers (6b) of a second composition of a nitride semiconductor material with electron energy which is higher in comparison with the first electron energy are provided, followed, seen in the direction of growth, by a radiation-active quantum well layer (6c), for which the essentially non-radiating well layers (6a) and the barrier layers (6b) arranged in front form a superlattice.