Investigation of Optical and Structural Stability of Localized Surface Plasmon Mediated Light‐Emitting Diodes by Ag and Ag/SiO 2  Nanoparticles | Zendy

Jang LeeWoon | Zendy; Jeon DaeWoo | Zendy; Kim Myoung | Zendy; Jeon JuWon | Zendy; Polyakov Alexander Y. | Zendy; Ju JinWoo | Zendy; Lee SeungJae | Zendy; Baek JongHyeob | Zendy; Yang JinKyu | Zendy; Lee InHwan | Zendy

Premium

Investigation of Optical and Structural Stability of Localized Surface Plasmon Mediated Light‐Emitting Diodes by Ag and Ag/SiO 2 Nanoparticles

Author(s) -

Jang LeeWoon,

Jeon DaeWoo,

Kim Myoung,

Jeon JuWon,

Polyakov Alexander Y.,

Ju JinWoo,

Lee SeungJae,

Baek JongHyeob,

Yang JinKyu,

Lee InHwan

Publication year - 2012

Publication title -

advanced functional materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 6.069

H-Index - 322

eISSN - 1616-3028

pISSN - 1616-301X

DOI - 10.1002/adfm.201103161

Subject(s) - materials science , surface plasmon resonance , photoluminescence , nanoparticle , annealing (glass) , diode , optoelectronics , x ray photoelectron spectroscopy , surface plasmon , electric field , impurity , light emitting diode , localized surface plasmon , colloid , plasmon , chemical engineering , nanotechnology , composite material , physics , quantum mechanics , engineering , chemistry , organic chemistry

Localized surface plasmon (LSP) effects due to Ag and Ag/SiO 2 nanoparticles (NPs) deposited on GaN/InGaN multiquantum well (MQW) light‐emitting diode (LED) structures are studied. The colloidal NPs are synthesized by a sol‐gel method and drop‐cased on the LED structures. The surface density of NPs its controlled by the concentration of the NP solution. Theoretical modeling is performed for the emission spectrum and the electric field distribution of LSP resonance for Ag/SiO 2 NPs. Enhanced photoluminescence (PL) efficiency is observed in the LED structures and the amount of PL enhancement increases with increasing the surface density of Ag and Ag/SiO 2 NPs. These effects are attributed to resonance coupling between the MQW and LSP in the NPs. It is also shown that the PL enhancement attainable with Ag NPs and Ag/SiO 2 NPs is comparable, but the latter displays a much higher stability with respect to long‐term storage and annealing due to a barrier for NP agglomeration, Ag oxidation, and impurity diffusion provided by the SiO 2 shell.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research