摘要:
An optoelectronic semiconductor chip includes a semiconductor layer sequence having an active layer provided for generating radiation. The semiconductor chip can be operated in a first operating mode and in a second operating mode. The semiconductor layer sequence emits radiation in the first operating mode, while the semiconductor layer sequence emits no radiation in the second operating mode. The semiconductor layer sequence is operated in the forward direction in the first operating mode and in the reverse direction in the second operating mode. A display including a number of semiconductor chips of this type and a use as a motor vehicle headlight are furthermore specified.
摘要:
An electronic device according to the invention includes a housing, a recess containing an optoelectronic component, and a film including a polyimide, which is over the recess covering the optoelectronic component.
摘要:
In at least one embodiment, the semiconductor layer sequence (1) is provided for an optoelectronic semiconductor chip (10). The semiconductor layer sequence (1) contains at least three quantum wells (2) which are arranged to generate electromagnetic radiation. Furthermore, the semiconductor layer sequence (1) includes a plurality of barrier layers (3), of which at least one barrier layer is arranged between two adjacent quantum wells (2) in each case. The quantum wells (2) have a first average indium content and the barrier layers (3) have a second, smaller, average indium content. A second average lattice constant of the barrier layers (3) is thereby smaller than a first average lattice constant of the quantum wells (2).
摘要:
Circuit arrangements for the operation of a pulse laser diode and methods for operating a pulse laser diode include a current source to supply a direct current to the pulse laser diode. The circuit arrangement can provide operation of the pulse laser diode that can be stable and without unintentional shifts in wavelength.
摘要:
In at least one embodiment, the semiconductor layer sequence (1) is provided for an optoelectronic semiconductor chip (10). The semiconductor layer sequence (1) contains at least three quantum wells (2) which are arranged to generate electromagnetic radiation. Furthermore, the semiconductor layer sequence (1) includes a plurality of barrier layers (3), of which at least one barrier layer is arranged between two adjacent quantum wells (2) in each case. The quantum wells (2) have a first average indium content and the barrier layers (3) have a second, smaller, average indium content. A second average lattice constant of the barrier layers (3) is thereby smaller than a first average lattice constant of the quantum wells (2).
摘要:
An optoelectronic semiconductor chip includes a semiconductor layer sequence having an active layer provided for generating radiation. The semiconductor chip can be operated in a first operating mode and in a second operating mode. The semiconductor layer sequence emits radiation in the first operating mode, while the semiconductor layer sequence emits no radiation in the second operating mode. The semiconductor layer sequence is operated in the forward direction in the first operating mode and in the reverse direction in the second operating mode. A display including a number of semiconductor chips of this type and a use as a motor vehicle headlight are furthermore specified.
摘要:
In at least one embodiment of the light source (1), the latter includes at least one semiconductor laser (2), which is designed to emit a primary radiation (P) of a wavelength of between 360 nm and 485 nm inclusive. Furthermore, the light source (1) comprises at least one conversion medium (3), which is arranged downstream of the semiconductor laser (2) and is designed to convert at least part of the primary radiation (P) into secondary radiation (S) of a different, greater wavelength than the primary radiation (P). The radiation (R) emitted by the light source (1) here displays an optical coherence length which amounts to at most 50 μm.
摘要:
Circuit arrangements for the operation of a pulse laser diode and methods for operating a pulse laser diode include a current source to supply a direct current to the pulse laser diode. The circuit arrangement can provide operation of the pulse laser diode that can be stable and without unintentional shifts in wavelength.
摘要:
An optoelectronic semiconductor chip includes a semiconductor layer stack and a mirror. The semiconductor layer stack has an active layer for generating electromagnetic radiation. The minor is arranged on an underside of the semiconductor layer stack. The mirror has a first region and a second region, the first region containing silver and the second region containing gold. A method of producing such a semiconductor chip is also defined.
摘要:
An optoelectronic semiconductor chip includes a semiconductor layer stack and a mirror. The semiconductor layer stack has an active layer for generating electromagnetic radiation. The mirror is arranged on an underside of the semiconductor layer stack. The mirror has a first region and a second region, the first region containing silver and the second region containing gold. A method of producing such a semiconductor chip is also defined.