Bidirectional light-emitting diode as a visible light source driven by alternating current.

ABSTRACT: Gallium nitride-based light-emitting diodes have revolutionized the lighting market by becoming the most energy-efficient light sources. However, the power grid, in example electricity delivery system, is built based on alternating current, which raises problems for directly driving light emitting diodes that require direct current to operate effectively. In this paper, we demonstrate a proof-of-concept device that addresses this fundamental issue - a gallium nitride-based bidirectional light-emitting diode. Its structure is symmetrical with respect to the active region, which, depending on the positive or negative bias, allows for the injection of either electrons or holes from each side. It is composed of two tunnel junctions that surround the active region. In this work, the optical and

SUBMITTER: Zak M 

PROVIDER: S-EPMC10661849 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature