Patent ID: 9711760
Date: 2017-07-18
CPC Classifications: H01L,H05B,Y02B

Claim:
1. A light-emitting device comprising: an active structure comprising an emissive halide perovskite layer, the halide perovskite layer comprising a halide perovskite material; a first injection electrode electrically coupled to the active structure; a second injection electrode electrically coupled to the active structure; a control electrode; and an insulator layer between the control electrode and the active structure; wherein the first injection electrode is configured to inject electrons into the active structure and the second injection electrode is configured to inject holes into the active structure upon application of a potential difference between the first injection electrode and the second injection electrode; and wherein the control electrode is configured to generate an electric field upon application of a voltage, thereby causing simultaneous accumulation of the electrons and the holes in a region of the halide perovskite layer so that the electrons and the holes recombine, thereby emitting light.