Patent ID: 8759845
Filing Date: 2014-06-24
Classification: H01L

Abstract:
1. A light emitting device comprising: a body of an indirect bandgap semiconductor material; a terminal arrangement connected to the body that applies a voltage that reverse biases the first junction region into a breakdown mode and that forward biases at least part of the second junction region; the device being configured so that a first depletion region associated with the reverse biased first junction region punches through the second region to a second depletion region associated with the at least part of the second junction region, an energy barrier at the at least part of the forward biased second junction region that is lowered by the first depletion region punching through the second region to the second depletion region, and carriers of a first kind injected into the first junction region from the at least part of the second junction region with the lowered energy barrier to interact with higher energy carriers of a second kind within the first depletion region to thereby enhance light generation in the first depletion region, thereby improving electroluminescence effects in the device.