Results 31 to 40 of about 5,576,489 (289)

Efficiency enhancement of light color conversion through surface plasmon coupling

open access: yesOptics Express, 2018
The efficiency enhancement of light color conversion from blue quantum well (QW) emission into red quantum dot (QD) emission through surface plasmon (SP) coupling by coating CdSe/ZnS QDs on the top of an InGaN/GaN QW light-emitting diode (LED) is demonstrated. Ag nanoparticles (NPs) are fabricated within a transparent conductive Ga-doped ZnO interlayer
Chun-Han Lin   +10 more
openaire   +2 more sources

The synthesis of white-laser source based on the frequency conversion with the Stark-chirped rapid adiabatic passage

open access: yesResults in Physics, 2021
In this paper, an efficient cascaded sum frequency generation (SFG) model based on Stark-chirped rapid adiabatic passage is established, in which the laser of signal, intermediate, and output corresponds to three primary, and an approach of white laser ...
Ting Wan   +3 more
doaj   +1 more source

Get it white : color-tunable AC/DC OLEDs [PDF]

open access: yes, 2015
This work was funded by the European Social Fund and the Free State of Saxony through the OrthoPhoto project. We kindly acknowledge the support from NUDEV.Organic light-emitting diodes (OLEDs) have gained considerable attention because of their use of ...
Kliem, Mona   +6 more
core   +1 more source

Dual Role of Quantum Dots as Color Conversion Layer and Suppression of Input Light for Full-Color Micro-LED Displays

open access: yes, 2021
In micro-light-emitting diode (micro-LED) displays with color-conversion layers, a facile and efficient technology getting rid of the use of the color filters leads to a big technical leap in cost-effective fabrication.
Sher, Chin Wei   +5 more
core   +1 more source

Ultrahigh-resolution full-color micro-LED array with enhanced efficiency based on a color conversion technique

open access: yesPhotonics Research, 2023
Micro-light emitting diodes (μLEDs) with remarkable advantages are becoming mainstream in next-generation display technologies such as augmented reality/virtual reality displays. However, further development of μLEDs still faces significant challenges, including mass transfer yield.
Ashish Gaurav   +5 more
openaire   +1 more source

Transparent organic light-emitting diodes with different bi-directional emission colors using color-conversion capping layers [PDF]

open access: yes, 2015
We report a study on transparent organic light-emitting diodes (OLEDs) with different bidirectional emission colors, enabled by color-conversion organic capping layers. Starting from a transparent blue OLED with an uncapped Ag top electrode exhibiting an
Gather, Malte Christian   +9 more
core   +2 more sources

A Novel Based On Image Blocking Method To Encrypt-Decrypt Color

open access: yesJOIV: International Journal on Informatics Visualization, 2019
Encryption of digital color image is the process of conversion original digital color image into an encrypted one to protect the image from hacking or to prevent an authorized person to get the valuable information located in the color image. The process
Jamil Al-Azzeh   +4 more
doaj   +1 more source

Advances in Quantum-Dot-Based Displays

open access: yesNanomaterials, 2020
In terms of their use in displays, quantum dots (QDs) exhibit several advantages, including high illumination efficiency and color rendering, low-cost, and capacity for mass production. Furthermore, they are environmentally friendly.
Yu-Ming Huang   +9 more
doaj   +1 more source

The role of etendue and ratchets in spectral conversion and multi-color emission [PDF]

open access: yes, 2019
© 2019 The Author(s). Spectral conversion can increase solar cell efficiency. We explain the thermo-dynamics of spectral conversion and the role of etendue and electronic ratchets.
Pusch, A ; https://orcid.org/   +1 more
core   +1 more source

Efficiency of wave energy conversion into electric power: calculation results

open access: yes, 2021
Object and purpose of research. The object of the study is the wave energy converters (WEC) into electric power. The purpose of the study is to draw up a differential equation describing the operation of the WEC, its solution and determination for the ...
Viktor N. Anosov, null null, V. Anosov
core   +1 more source

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