TY - JOUR
T1 - Ag@SiO2-embedded InGaN/GaN nanorod array white light-emitting diode with perovskite nanocrystal films
AU - Shin, Do Yeong
AU - Kim, Taehwan
AU - Akyuz, Ozgun
AU - Demir, Hilmi Volkan
AU - Lee, In Hwan
N1 - Funding Information:
This research study was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIT) (NRF-2019K1A3A1A39103053) and by the Scientific and Technological Research Council of Turkey (T?B?TAK 119N343).
Funding Information:
This research study was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIT) ( NRF-2019K1A3A1A39103053 ) and by the Scientific and Technological Research Council of Turkey ( TÜBİTAK 119N343 ).
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021
Y1 - 2021
N2 - 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@SiO2-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@SiO2 nanoparticles. In addition, the perovskite PL intensity was improved by the high-power BLED backlight. The resulting PL intensity of the Ag@SiO2 nanoparticle-embedded nanorod white LED was 62% greater than that of a planar white LED.
AB - 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@SiO2-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@SiO2 nanoparticles. In addition, the perovskite PL intensity was improved by the high-power BLED backlight. The resulting PL intensity of the Ag@SiO2 nanoparticle-embedded nanorod white LED was 62% greater than that of a planar white LED.
KW - Localized surface plasmon
KW - Nanorod light-emitting diodes
KW - Perovskite nanocrystals
KW - White light-emitting diodes
UR - http://www.scopus.com/inward/record.url?scp=85120870163&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2021.162974
DO - 10.1016/j.jallcom.2021.162974
M3 - Article
AN - SCOPUS:85120870163
VL - 898
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
M1 - 162974
ER -