Novel microlens arrays with embedded Al2O3nanoparticles for enhancing efficiency and stability of flexible polymer light-emitting diodes

RSC Advances ◽  
2016 ◽  
Vol 6 (70) ◽  
pp. 65450-65458 ◽  
Author(s):  
Young Yun Kim ◽  
Jung Jin Park ◽  
Seong Ji Ye ◽  
Woo Jin Hyun ◽  
Hyeon-Gyun Im ◽  
...  
Keyword(s):  
Optical Properties ◽  
Light Emitting Diodes ◽  
Microlens Arrays ◽  
Light Emitting ◽  
Flexible Polymer ◽  
Polymer Light Emitting Diodes ◽  
Enhance Efficiency ◽  
Silica Hybrid

Microlens arrays were newly fabricated with silica hybrid sol and Al2O3nanoparticles, to enhance efficiency and stability of polymer light-emitting diodes, as well as to minimize changes in optical properties.

Efficient flexible polymer light emitting diodes with conducting polymer anodes

2007 ◽  
Vol 17 (33) ◽  
pp. 3551 ◽  
Author(s):  
J. Huang ◽  
X. Wang ◽  
A. J. deMello ◽  
J. C. deMello ◽  
D. D. C. Bradley
Keyword(s):  
Conducting Polymer ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Flexible Polymer ◽  
Polymer Light Emitting Diodes

Thickness-dependent changes in the optical properties of PPV- and PF-based polymer light emitting diodes

2003 ◽  
Vol 68 (5) ◽  
Author(s):  
J. M. Leger ◽  
S. A. Carter ◽  
B. Ruhstaller ◽  
H.-G. Nothofer ◽  
U. Scherf ◽  
...  
Keyword(s):  
Optical Properties ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes

Electrical and Optical Properties of Green Polymer Light Emitting Diodes with Various Structures of Au Nanoparticles

2015 ◽  
Vol 15 (10) ◽  
pp. 7693-7698
Author(s):  
Byung Min Park ◽  
Gi Ppeum Kim ◽  
Sae Chan Mun ◽  
Ho Jung Chang
Keyword(s):  
Optical Properties ◽  
Au Nanoparticles ◽  
Light Emitting Diodes ◽  
Synthesis Method ◽  
Hole Injection ◽  
Electrical And Optical Properties ◽  
Au Nps ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes ◽  
Green Polymer

The green polymer light emitting diodes (PLEDs) were fabricated using the solution precursor synthesis method. To improve the device’s electrical and optical properties, gold (Au) nanoparticles (NPs) were added to the hole injection layer (HIL) with poly(3,4-ethylene-dioxythiophene): poly(styrenesulfolnate) (PEDOT:PSS) organic material. The green PLED devices with a structure of glass/ITO/PEDOT:PSS+Au NPs/PVK:Ir(ppy)3/TPBi/LiF/Al were prepared by conventional spin-coating and thermal evaporation methods. Various concentrations of Au NPs were doped to the HILs to optimize the device’s light emitting characteristic. The effects of Au NPs concentrations on the properties of PLEDs were investigated. The doping concentrations of Au NPs were changed ranging from 0.0 to 1.0 vol%. At the optimized Au NPs concentration of 0.5 vol%, we also studied the effects of various film layers with and without Au NPs on the properties of PLEDs. The maximum luminance and external quantum efficiency of the devices were found to be 20430 cd/m2 and 7.49%, respectively.

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