Patent ID: 7286573
Filing Date: 2007-10-23
Classification: B82Y,H01L,H01S,Y10S

Abstract:
1. A method for converting a Type II quantum well (QW) structure including III–V semiconductor material to a Type I QW structure, the method comprising: providing first and third spaced apart layers of respective first and third III–V semiconductor donor materials, having selected first layer and third layer widths, respectively, each in a width range of about 1–30 nm; providing a second layer of a second III–V semiconductor material, contiguous to and lying between the first layer and the third layer, having a selected second layer width in a width range of about 1–30 nm and having a selected negative potential relative to potentials of the first layer and the third layer; doping a first layer first component, having a width that is less than the first layer width and is in a width range of about 1–20 nm, with a first layer doping level in a doping range of about (1–100)×10 doping a third layer first component, having a width that is less than the third layer width and is in a width range of about 1–20 nm, with a third layer doping level in a doping range of about (1–100)×10 where the first layer first component and third layer first component doping levels and the first layer and third layer widths are chosen so that at least one of the following conditions is satisfied: (1) a change in electrical potential across an interface between the first and second layers is equal to a first selected potential value and (2) a change in electrical potential across an interface between the second and third layers is equal to a second selected potential value.