Abstract:
A light-emitting element includes a substrate; a first light-emitting stacked layer formed on the substrate; a tunneling layer formed on the first light-emitting stacked layer; a second light-emitting stacked layer formed on the tunneling layer; and a contact layer formed on the second light-emitting stacked layer.
Abstract:
This application is related to a tandem solar cell device including a substrate, a first tunnel junction formed on the substrate, and a first p-n junction formed on the first tunnel junction wherein the first tunnel junction including a heavily doped n-type layer and an alloy layer wherein the alloy layer having an element with atomic number larger than that of Gallium.