Plasmonic enhanced high brightness blue micro-light-emitting devices

Brightness blue micro-light-emitting devices (Micro-LED) play an important role in display and optical communication fields. However, optical loss often occurs in Micro-LEDs, thus preventing the brightness. In this article, a single ZnO microwire (MW) was used to prepare the n-ZnO MW/p-GaN LED, and Ag nanowires were used to fabricate an enhanced plasmonic Micro-LED. Our results showed that the devices presented a typical bule electroluminescence (EL) spectrum and it was enhanced 10 times after the Ag nanowires were bonded. The mechanism of the enhancement was analyzed by theoretical calculation and time resolved photoluminescence (TRPL) results. The work provides a new strategy for the fabrication and enhancement of Micro-LEDs.