scholarly journals Flexible nanophosphor films doped with Mie resonators for enhanced out-coupling of the emission

2019 ◽  
Vol 7 (2) ◽  
pp. 267-274 ◽  
Author(s):  
José M. Miranda-Muñoz ◽  
Dongling Geng ◽  
Mauricio E. Calvo ◽  
Gabriel Lozano ◽  
Hernán Míguez
Keyword(s):  
Light Emitting Diodes ◽  
Cost Effective ◽  
Solution Processing ◽  
Effective Solution ◽  
Processing Methods ◽  
Light Emitting ◽  
General Method

Herein, we present a general method to prepare self-standing flexible photoluminescent coatings of controlled opacity for integration into light-emitting diodes (LEDs) employing cost-effective solution-processing methods.

Emissive Semi-Interpenetrating Polymer Networks for Ink-Jet Printed Multilayer OLEDs

2021 ◽  
Author(s):  
Susanna V. Kunz ◽  
Cameron M. Cole ◽  
Thomas Baumann ◽  
Prashant Murlidhar Sonar ◽  
Soniya Yambem ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Organic Light Emitting Diodes ◽  
Cross Linking ◽  
Solution Processing ◽  
Light Emitting ◽  
Polymer Precursors ◽  
Organic Light ◽  
Ink Jet

Solution-processing of multilayered Organic Light Emitting Diodes (OLEDs) remains a challenge that is often addressed by cross-linking polymer precursors into insoluble networks. Herein, we blend an emissive polymer carrying a...

Cost-Effective Light-Mixing Module for Solar-Lighting System Appended With Auxiliary RGBW Light-Emitting Diodes

2017 ◽  
Vol 139 (6) ◽  
Author(s):  
An Chi Wei ◽  
Shih Chieh Lo ◽  
Ju-Yi Lee ◽  
Hong-Yih Yeh
Keyword(s):  
Light Source ◽  
Light Emitting Diodes ◽  
Cylindrical Tube ◽  
Cost Effective ◽  
Lighting System ◽  
Optical Efficiency ◽  
Light Emitting ◽  
Solar Lighting ◽  
Lighting Systems ◽  
Main Components

A light-mixing module consisting of a compound parabolic concentrator (CPC) and a light-mixing tube is proposed herein to realize a uniform and efficient solar-lighting system. In this lighting system, the sunlight collected into a fiber and then guided to an indoor destination is the principal light source, while an auxiliary light source including multiple red, green, blue, and white (RGBW) light-emitting diodes (LEDs) is controlled by an auto-compensating module. To mix the principal and the auxiliary sources and to realize the uniform illumination, the light-mixing tube was coated with BaSO4 and optimized as a cylindrical tube. The design of the light-mixing tube is described and discussed in this article. According to the simulated results, the uniformity and the optical efficiency of the designed light-mixing tube are 82.9% and 85.7%, respectively, while from the experimental results, the uniformity of 85.9% and the optical efficiency of 83.3% have been obtained. In terms of the common indoor-lighting standards and the specifications of commercial components used in lighting systems, the proposed light-mixing module has demonstrated the high uniformity and acceptable optical efficiency. Additionally, since the main components of the light-mixing module can be designed as plastic optics, a cost-effective light-mixing module and a profitable lighting system can be realized. Thus, the performance and the price of the proposed light-mixing module fit the demands of the illumination market, while the proposed system shows the potential for indoor solar-lighting applications.

Development of a cost effective surface-patterned transparent conductive coating as top-contact of light emitting diodes

2014 ◽  
Vol 115 (19) ◽  
pp. 193108 ◽  
Author(s):  
Arpita Haldar ◽  
Susanta Bera ◽  
Sunirmal Jana ◽  
Kallol Bhattacharya ◽  
Rajib Chakraborty
Keyword(s):  
Light Emitting Diodes ◽  
Cost Effective ◽  
Effective Surface ◽  
Light Emitting ◽  
Conductive Coating ◽  
Top Contact

scholarly journals Efficient white polymer light-emitting diodes (WPLEDs) based on covalent-grafting of [Zn2(MP)3(OAc)] into PVK

2020 ◽  
Vol 11 (10) ◽  
pp. 2640-2646 ◽  
Author(s):  
Guorui Fu ◽  
Yani He ◽  
Wentao Li ◽  
Tiezheng Miao ◽  
Xingqiang Lü ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Cost Effective ◽  
Large Area ◽  
Light Emitting ◽  
Grafted Polymer ◽  
Covalent Grafting ◽  
Polymer Light Emitting Diodes

Using [Zn2(MP)3(OAc)]-grafted polymer as a single emitting layer, record-high efficiencies and weak (ca. 25%) efficiency roll-off are realized for cost-effective and large-area flexible WPLEDs.

Thermally activated delayed fluorescence of co-deposited copper(i) complexes: cost-effective emitters for highly efficient organic light-emitting diodes

2017 ◽  
Vol 5 (28) ◽  
pp. 6982-6988 ◽  
Author(s):  
Zixing Wang ◽  
Jun Zhu ◽  
Zhiwei Liu ◽  
Peng Wu ◽  
Hedan Wang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Cost Effective ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Copper Iodide ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Highly Efficient ◽  
Organic Light

TADF copper(i) complexes were made by co-depositing carboline derivatives and copper iodide. δ-Carboline derivative-based OLEDs showed 6 times higher efficiency than α-carboline derivative-based ones.

General method to solution-process multilayer polymer light-emitting diodes

2006 ◽  
Vol 88 (16) ◽  
pp. 163501 ◽  
Author(s):  
Shin-Rong Tseng ◽  
Shi-Chang Lin ◽  
Hsin-Fei Meng ◽  
Hua-Hsien Liao ◽  
Chi-Hung Yeh ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Solution Process ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes ◽  
General Method
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