Improved light emission of GaN-based light-emitting diodes by efficient localized surface plasmon coupling with silver nanoparticles.

Highlights: [•] A simply fabricated platform for high efficiency plasmonic LED is demonstrated. [•] Blue light emission is increased by 4.4-fold via localized surface plasmon coupling. [•] A 1.5-fold higher spontaneous emission rate confirms the fast recombination channel. [•] 53% enhancement in internal quantum efficiency was performed. [Copyright &y& Elsevier]