Ihp Gmbh - Innovations for High Performance Microelectronics

Ihp Gmbh-innovations for High Performance Microelectronics/leibniz-institut Fur Innovative Mikroelektronik

Manfred Reiche

Martin Kittler

Tzanimir Arguirov

Winfried Seifert

A light emitting semiconductor device according the invention includes an SOI substrate, a collector and an injector. The SOI substrate includes a carrier layer, a buried oxide layer on the carrier layer, and a doped silicon layer structure with a conductivity type. The doped silicon layer structure with the conductivity type includes at least two silicon- or silicon germanium layers arranged adjacent to one another, wherein a dislocation network is configured in their interface portions at which dislocation network a radiative charge carrier combination with a light energy is provided, which light energy is smaller than a band gap energy of the silicon- or silicon germanium layers. The collector is formed as a pn-junction in a portion between the dislocation network and a surface of the silicon layer structure that is oriented away from the carrier layer, and wherein the injector is configured as a metal insulator semiconductor diode.

Light-emitting semiconductor structure and optoelectronic component therefrom

A thermoelectric semiconductor component, comprising an electrically insulating substrate surface and a plurality of spaced-apart, alternating p-type () and n-type semiconductor structural elements () which are disposed on said surface and which are connected to each other in series in an electrically conductive manner alternatingly at two opposite ends of the respective semiconductor structural elements by conductive structures, in such a way that a temperature difference (2&#x394;T) between the opposite ends produces an electrical voltage between the conductive structures or that a voltage difference between the conductive structures () produces a temperature difference (2&#x394;T) between the opposite ends, characterized in that the semiconductor structural elements have a first boundary surface between a first and a second silicon layer, the lattice structures of which are considered ideal and are rotated by an angle of rotation relative to each other about a first axis perpendicular to the substrate surface and tilted by a tilt angle about a second axis lying parallel to the substrate surface, in such a way that a dislocation network is present in the region of the boundary surface.

Thermoelectric semiconductor component

A light-emitting semiconductor component comprising a substrate which has a first interface between a first and a second silicon layer, whose lattice structures which are considered as ideal are rotated relative to each other through a twist angle about a first axis perpendicular to the substrate surface and are tilted through a tilt angle about a second axis parallel to the substrate surface, in such a way that a dislocation network is present in the region of the interface, wherein the twist angle and the tilt angle are so selected that an electroluminescence spectrum of the semiconductor component has an absolute maximum of the emitted light intensity at either 1.3 micrometers light wavelength or 1.55 micrometers light wavelength.

Growing community of inventors

Halle, Germany

Manfred Reiche