Electrically Injected Hybrid Organic/Inorganic III-Nitride White Light-Emitting Diodes with Nonradiative Förster Resonance Energy Transfer

• DOI: 10.1021/acsphotonics.7b01291
• Publication Date: 2017-11-20T15:19:43Z
• Authors: Suneal Ghataora; Richard M. Smith; Modestos Athanasiou; Tao Wang

An electrically injected hybrid organic/inorganic III-nitride white light-emitting diode (LED) has been fabricated by using a two-dimensional (2D) microhole array structure. The LED geometry significantly enhances proximity between the inorganic active-region and down-converting yellow organic polymers (OLEPs), enabling near-field nonradiative Förster resonance energy transfer (FRET) process with high efficiency while retaining excellent electrical characteristics of an unpatterned planar LED. A reduction in recombination lifetime InGaN/GaN blue active region observed device, confirming FRET occurring polymer. This results typical 16.7%, where interaction area accounts for approximately 0.64% remaining blue-emitting LED, but enhancing total device efficiency. optimized white-light EL emission is achieved CIE color coordinates at (0.29, 0.32).