scholarly journals Assessment of the optical and electrical properties of light-emitting diodes containing carbon-based nanostructures and plasmonic nanoparticles: a review

2021 ◽  
Vol 12 ◽  
pp. 1078-1092
Author(s):  
Keshav Nagpal ◽  
Erwan Rauwel ◽  
Frédérique Ducroquet ◽  
Protima Rauwel
Keyword(s):  
Thermal Management ◽  
Carbon Nanostructures ◽  
Light Emitting Diodes ◽  
Plasmonic Nanoparticles ◽  
Device Performance ◽  
Optical And Electrical Properties ◽  
Light Emitting ◽  
Flexible Devices ◽  
Turn On ◽  
Lighting Systems

Light-emitting diodes (LED) are widely employed in display applications and lighting systems. Further research on LED that incorporates carbon nanostructures and metal nanoparticles exhibiting surface plasmon resonance has demonstrated a significant improvement in device performance. These devices offer lower turn-on voltages, higher external quantum efficiencies, and luminance. De facto, plasmonic nanoparticles, such as Au and Ag have boosted the luminance of red, green, and blue emissions. When combined with carbon nanostructures they additionally offer new possibilities towards lightweight and flexible devices with better thermal management. This review surveys the diverse possibilities to combine various inorganic, organic, and carbon nanostructures along with plasmonic nanoparticles. Such combinations would allow an enhancement in the overall properties of LED.

Low turn-on voltage and highly bright Ag–In–Zn–S quantum dot light-emitting diodes

2018 ◽  
Vol 6 (17) ◽  
pp. 4683-4690 ◽  
Author(s):  
Bingyan Zhu ◽  
Wenyu Ji ◽  
Zongquan Duan ◽  
Yang Sheng ◽  
Ting Wang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Charge Carrier ◽  
Light Emitting Diodes ◽  
Hole Transport ◽  
Device Performance ◽  
Carrier Distribution ◽  
Light Emitting ◽  
Turn On ◽  
Highly Efficient ◽  
Hole Transport Layers

Highly efficient QLEDs based on Ag–In–Zn–S QDs were achieved by managing the charge carrier distribution and the effect of hole transport layers on the device performance was investigated systematically.

Efficient All-inorganic Perovskite Light-emitting Diodes Enabled by Manipulating Crystal Orientation

2021 ◽  
Author(s):  
Wenjing Feng ◽  
Kebin Lin ◽  
Wenqiang Li ◽  
Xiangtian Xiao ◽  
Jianxun Lu ◽  
...  
Keyword(s):  
Active Layer ◽  
Crystal Orientation ◽  
Light Emitting Diodes ◽  
Metal Halide ◽  
Device Performance ◽  
Light Emitting ◽  
Inorganic Perovskite ◽  
Metal Halide Perovskite ◽  
Halide Perovskite

Metal halide perovskite light-emitting diodes (PeLEDs) are promising in lighting and display application, and the corresponding device performance is highly dependent on the film quality of the active layer. However,...

Assessing the impact of the transition to Light Emitting Diodes based solar lighting systems in India

2013 ◽  
Vol 17 (4) ◽  
pp. 363-370 ◽  
Author(s):  
Santosh M. Harish ◽  
Shuba V. Raghavan ◽  
Milind Kandlikar ◽  
Gireesh Shrimali
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Solar Lighting ◽  
Lighting Systems ◽  
The Impact

scholarly journals GaN-Based Light-Emitting Diodes with Graphene Buffers for Their Application to Large-Area Flexible Devices

2017 ◽  
Vol E100.C (2) ◽  
pp. 161-165 ◽  
Author(s):  
Jitsuo OHTA ◽  
Jeong Woo SHON ◽  
Kohei UENO ◽  
Atsushi KOBAYASHI ◽  
Hiroshi FUJIOKA
Keyword(s):  
Light Emitting Diodes ◽  
Large Area ◽  
Light Emitting ◽  
Flexible Devices

Pyridine-Incorporated Dihexylquaterthiophene: A Novel Blue Emitter for Organic Light Emitting Diodes (OLEDs)

2012 ◽  
Vol 65 (9) ◽  
pp. 1244 ◽  
Author(s):  
Prashant Sonar ◽  
Sonsoles Garcia Santamaria ◽  
Ting Ting Lin ◽  
Alan Sellinger ◽  
Henk Bolink
Keyword(s):  
Light Emitting Diodes ◽  
Blue Emission ◽  
Organic Light Emitting Diodes ◽  
High Yield ◽  
Device Performance ◽  
Host Matrix ◽  
Maximum Brightness ◽  
Light Emitting ◽  
Organic Light ◽  
Processing Techniques

The synthesis and characterisation of 2,5-bis(5′-hexyl-[2,2′-bithiophen]-5-yl)pyridine (Th4PY) and its use as a blue emitter in organic light emitting diodes (OLEDs) is reported. Th4PY was synthesised in high yield using a straightforward Suzuki coupling route with commercially available starting materials. As Th4PY is both soluble and has low molecular weight, blue OLEDs were fabricated using both spin-coating and vacuum deposition thin film processing techniques to study the effect of processing on device performance. OLED devices using a spin-coated layer consisting of 4′,4′′-tris(N-carbazolyl)triphenylamine (TCTA) and 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole (PBD) as a host matrix together with Th4PY as emitter exhibited highly efficient sky-blue emission with a low turn-on voltage of 3 V, a maximum brightness close to 15000 cd m–2 at 8 V, and a maximum luminous efficiency of 7.4 cd A–1 (6.3 lm W–1) with CIE coordinates of x = 0.212, y = 0.320. The device performance characteristics are compared using various matrices and processing techniques. The promising sky-blue OLED performance, solution processability, and ambient stability make Th4PY a promising blue emitter for application in OLEDs.

The thermal management of high power light emitting diodes

2012 ◽  
Author(s):  
Ming-Seng Hsu ◽  
Jen-Wei Huang ◽  
Feng-Lin Shyu
Keyword(s):  
Thermal Management ◽  
High Power ◽  
Light Emitting Diodes ◽  
Light Emitting

High-Performance Solution Processed Red Hyperfluorescent OLEDs Based on Cibalackrot

2022 ◽  
Author(s):  
Nicholle R. Wallwork ◽  
Masashi Mamada ◽  
Atul Shukla ◽  
Sarah K. M. McGregor ◽  
Chihaya Adachi ◽  
...  
Keyword(s):  
High Performance ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Device Performance ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light

Hyperfluorescent organic light-emitting diodes (OLEDs) has allowed remarkable device performances to be achieved using fluorescent emitters. Superior device performance has been realised using thermally evaporated emissive layers. However, for future...

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