Results 31 to 40 of about 58,732 (296)
Polymer nanofibers as novel light-emitting sources and lasing material [PDF]
, 2013 Polymer micro- and nano-fibers, made of organic light-emitting materials with optical gain, show interesting lasing properties. Fibers with diameters from few tens of nm to few microns can be fabricated by electrospinning, a method based on electrostatic
Camposeo, Andrea +2 more
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AIP Advances, 2016 n-ZnO/p-GaN heterojunction light-emitting diodes with a p-GaN/Al0.1Ga0.9N/n+-GaN polarization-induced tunneling junction (PITJ) were fabricated by metal-organic chemical vapor deposition.
Ling Li +7 more
doaj +1 more source
White Fluorescent Organic Light-Emitting Diodes with 100% Power Conversion
Research, 2022 Energy-efficient lighting sources are desired to provide another solution of carbon emission reduction. White organic light-emitting diodes are promising, because of theoretical internal quantum efficiencies for 100% electric-to-light conversion. However,
Dongxue Ding +7 more
doaj +1 more source
Luminescence in sulfides : a rich history and a bright future [PDF]
, 2010 Sulfide-based luminescent materials have attracted a lot of attention for a wide range of photo-, cathodo- and electroluminescent applications. Upon doping with Ce3+ and Eu2+, the luminescence can be varied over the entire visible region by appropriately
Hens, Zeger +3 more
core +2 more sources
Visible Light Communications towards 5G [PDF]
, 2015 5G networks have to offer extremely high capacity for novel streaming applications. One of the most promising approaches is to embed large numbers of co-operating small cells into the macro-cell coverage area.
Chvojka, P. +3 more
core +2 more sources
Numerical investigation of a 2D-grating for light extraction of a bottom emitting OLED [PDF]
, 2006 An important limiting factor for efficient white light emitting organic LEDs is the total internal reflection occurring at each interface. In a bottom emitting OLED light is trapped by reflection at the interface between the organic layers and glass ...
Baets, Roel +3 more
core +3 more sources
Reconfigurable organic light-emitting diodes [PDF]
CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on Lasers and Electro-Optics (IEEE Cat. No.03TH8671), 2004 In this article, we report a promising type of reconfigurable OLEDs incorporating a thin carrier-blocking layer as the sacrificial fusing layer. In such devices, the carrier-blocking layer has lower glass transition temperature than neighboring layers.
Chen, Chieh-Wei +2 more
openaire +2 more sources
Efficient Tandem Organic Light Emitting Diode Using Organic Photovoltaic Charge Generation Layer
International Journal of Optics, 2018 Highly efficient tandem red OLED is proposed using planar organic heterojunction based charge generation layer (CGL) of C70 (Fullerene)/CoPc (Cobalt Phthalocyanine). The proposed charge generation layer generates charges and exhibits organic photovoltaic
Akanksha Jetly, Rajesh Mehra
doaj +1 more source
Charge and exciton dynamics of OLEDs under high voltage nanosecond pulse: towards injection lasing
Nature Communications, 2020 Though efforts toward electrically-pumped lasers based on simple organic light-emitting diode (OLED) structures have been reported, a comprehensive model is needed to elucidate key optoelectronic processes.
Viqar Ahmad +9 more
doaj +1 more source
Effect of selected luminescent layers on CCT, CRI, and response times [PDF]
, 2019 Phosphors have been used as wavelength converters in illumination for many years. When it is excited with blue light, the frequently used yttrium aluminium garnet doped with cerium (YAG:Ce) phosphor converts a part of blue light to a wideband yellow ...
Jargus, Jan +4 more
core +1 more source