Light-emitting diodes
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TLDR
Bergh and P.J.Dean as discussed by the authors proposed a light-emitting diode (LEDD) for light-aware Diodes, which was shown to have promising performance.Abstract:
Light-Emitting Diodes. (Monographs in Electrical and Electronic Engineering.) By A. A. Bergh and P. J. Dean. Pp. viii+591. (Clarendon: Oxford; Oxford University: London, 1976.) £22.read more
Citations
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Reliability Engineering and System Safety
TL;DR: In this paper, a polynomial dimensional decomposition (PDD) method for global sensitivity analysis of stochastic systems subject to independent random input following arbitrary probability distributions is presented.
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Origin of efficiency droop in GaN-based light-emitting diodes
Min-Ho Kim,Martin F. Schubert,Qi Dai,Jong Kyu Kim,E. Fred Schubert,Joachim Piprek,Yongjo Park +6 more
TL;DR: In this paper, the efficiency droop in GaInN∕GaN multiple-quantum well (MQW) light-emitting diodes was investigated and it was shown that the droop is not related to MQW efficiency but rather to the recombination of carriers outside the MqW region.
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Lasing in direct-bandgap GeSn alloy grown on Si
Stephan Wirths,R. Geiger,R. Geiger,N. von den Driesch,Gregor Mussler,Toma Stoica,Siegfried Mantl,Zoran Ikonic,Martina Luysberg,Stefano Chiussi,J. M. Hartmann,Hans Sigg,Jérôme Faist,Dan Buca,Detlev Grützmacher +14 more
TL;DR: In this paper, a direct bandgap GeSn alloy, grown directly onto Si(001), was used for experimentally demonstrating lasing threshold and linewidth narrowing at low temperatures.
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Spectroscopic and Device Aspects of Nanocrystal Quantum Dots
Jeffrey M. Pietryga,Young-Shin Park,Young-Shin Park,Jaehoon Lim,Andrew F. Fidler,Wan Ki Bae,Sergio Brovelli,Victor I. Klimov +7 more
TL;DR: Recent advances in nanocrystal research related to applications of QD materials in lasing, light-emitting diodes (LEDs), and solar energy conversion are examined.
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LED Based Indoor Visible Light Communications: State of the Art
TL;DR: This paper provides a comprehensive survey on VLC with an emphasis on challenges faced in indoor applications over the period 1979-2014.
References
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Journal ArticleDOI
Visibility range of LED signaling lights of a runway
TL;DR: In this paper, the luminous intensity from light emitting diode (LED) lights necessary for reliable visual detection of runway (RW) lights in real operational conditions is presented. And the effectiveness of RW LED lights is analyzed in different weather conditions during the night, at twilight, and in the daytime, and questions of a stepped adjustment of LED light radiation intensities in accordance with ICAO standards are considered.
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Effect of exposure parameters and annealing on the structure and morphological properties of nanopatterned sapphire substrates prepared by solid state reaction
TL;DR: In this paper, the effect of exposure parameters and annealing on the structure and morphological properties of nanopatterned sapphire substrates prepared by solid state reaction was investigated by a scanning electron microscope (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD), and Raman, respectively.
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Solar Power Concentrators for Space Applications
TL;DR: In this article, a meta analysis of photovoltaic concentrator research is presented to determine viability in space applications, considering contributions to cell heating, subcell current matching and efficiency of the InGaP/GaAs/Ge multi-junction cell.
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Enhancement of Light Extraction from GaN-Based Light-Emitting Diodes by Coating Surface with Al2O3 Powder
Tae Ki Kim,Seung-Hwan Kim,Seong Seok Yang,Jeong Kwon Son,Keon Hwa Lee,Seong Jun Bae,Sang Kyun Shim,Seong Jin Son,Jeong Su Lee,Kyu-Hwan Shim,Kee Young Lim,Gye Mo Yang +11 more
TL;DR: In this paper, GaN-based light-emitting diodes (LEDs) were fabricated by coating Al2O3 powder on a p-GaN and a semitransparent p-contact metal surface to increase the extraction probability of the internal reflected photons through the Al 2 O3 powder.
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Influence of a Thermal Pad on Selected Parameters of Power LEDs
TL;DR: In this article, the influence of thermal pads on electric, optical, and thermal parameters of power LEDs was analyzed for selected types of power LED operating with a thermal pad and without it at different values of the diode forward current and temperature of the cold plate.