Flower-Like Internal Emission Distribution of LEDs with Monolithic Integration of InGaN-based Quantum Wells Emitting Narrow Blue, Green, and Red Spectra.

ABSTRACT: We report a phosphor-free white light-emitting diodes (LED) realized by the monolithic integration of In_0.18Ga_0.82N/GaN (438 nm, blue), In_0.26Ga_0.74N/GaN (513 nm, green), and In_0.45Ga_0.55N/In_0.13Ga_0.87N (602 nm, red) quantum wells (QWs) as an active medium. The QWs corresponding to blue and green light were grown using a conventional growth mode. For the red spectral emission, five-stacked In_0.45Ga_0.55N/In_0.13Ga_0.87N QWs were realized by the so-called Ga-flow-interruption (Ga-FI) technique, wherein the Ga supply was periodically interrupted during the deposition of In_0.3Ga_0.7N to form an In_0.45Ga_0.55N well. The verti

SUBMITTER: Lee K 

PROVIDER: S-EPMC5541069 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature