首页|(162974)Ag@SiO_2-embedded InGaN/GaN nanorod array white light-emitting diode with perovskite nanocrystal films
(162974)Ag@SiO_2-embedded InGaN/GaN nanorod array white light-emitting diode with perovskite nanocrystal films
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NSTL
Elsevier
White light-emitting diodes (LEDs) are great candidates for general lighting. Phosphors have commonly been used for the color conversion layers of white LEDs; however, they backscatter more than half of the down-converted light, which is lost within the device, thus degrading the overall performance. In this study, we propose and demonstrate white LEDs with improved efficiency enabled by the intimate integration of Ag@SiO_2-supported blue InGaN/GaN nanorod LEDs together with green- and red-emitting perovskite nanocrystal (PNC) films as color conversion layers. The photoluminescence (PL) intensity of the blue LEDs (BLEDs) was significantly enhanced owing to the localized surface plasmon (LSP) effect of Ag@SiO_2 nano-particles. In addition, the perovskite PL intensity was improved by the high-power BLED backlight. The resulting PL intensity of the Ag@SiO_2 nanoparticle-embedded nanorod white LED was 62% greater than that of a planar white LED.
White light-emitting diodesPerovskite nanocrystalsNanorod light-emitting diodesLocalized surface plasmon
Do-Yeong Shin、Taehwan Kim、Ozgun Akyuz
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Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
NSTL
Elsevier
