Semiconductor-layer structure useful in optoelectronic component, comprises a super lattice out of alternating piled layers of a first and a second type

摘要

The semiconductor-layer structure useful in optoelectronic component, comprises a super lattice (9) out of alternating piled layers of a first and a second type (b). The piled layers are III-V connection semiconductor. An element differs in super lattice adjoining layers of different types. In the super lattice, two layers of the same type have a different content (C Al, C In) at the element. The content is placed on the element within a layer of the lattice. The layer of the super lattice is doped with different doping substances in given concentration. The semiconductor-layer structure useful in optoelectronic component, comprises a super lattice (9) out of alternating piled layers of a first and a second type (b). The piled layers are III-V connection semiconductor. An element differs in super lattice adjoining layers of different types. In the super lattice, two layers of the same type have a different content (C Al, C In) at the element. The content is placed on the element within a layer of the lattice. The layer of the super lattice is doped with different doping substances in given concentration. The super lattice has alternating piled layers of (In xAl yGa 1 - x - y and In wAl zGa 1 - w - zN with 0= x, y, w, z= 1 and x+y= 1 and w+z= 1), (In xAl yG 1 - x - yP and In wAl zGa 1 - w - z with 0= x, y, w, z= 1) or (In xAl yGa 1 - x - yAs and In wGa 1 - w - zAs with 0= x, y, w, z= 1 and x+y= 1 and w+z= 1). In the single layer of the super lattice, a vertical position is assigned within the semiconductor-layer structure and the content of the element in a layer is dependent on its vertical position within the structure in given manner. The dependence of the content is purported for the layer of the first type through a first function, for the layer of the second type through a second function and/or for all layers through common function. The first, second and/or common function is a variable function, monotonous ascending/descending function, linear function, polynomial function, exponential function, logarithmic function, periodic function and/or a super position of the named function or its parts. The content at the element is constant within the layer of the super lattice. The layers of the different type have different thickness. An independent claim is included for an optoelectronic component.