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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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
Simple and Versatile Turbidimetric Monitoring of Bacterial Growth in Liquid Cultures Using a Customized 3D Printed Culture Tube Holder and a Miniaturized Spectrophotometer: Application to Facultative and Strictly Anaerobic Bacteria
Margarida R.G. Maia,Sara Marques,Ana R.J. Cabrita,R. John Wallace,Gertrude Thompson,António J.M. Fonseca,Hugo M. Oliveira +6 more
TL;DR: This new portable measurement technique was used to monitor the growth of facultative and strictly anaerobic bacteria and could accommodate further developments for customized turbidimetric monitoring, such as the use of light-emitting diodes as a light source or flow cells.
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Controlled Mixed Violet−Blue−Red Electroluminescence from Eu:Nano-Phosphors/ZnO-Nanowires/p‑GaN Light-Emitting Diodes
Oleg Lupan,Oleg Lupan,Oleg Lupan,Bruno Viana,Thierry Pauporté,Maroua Dhaouadi,Fabienne Pellé,Lucie Devys,Thierry Gacoin +8 more
TL;DR: In this article, a light-emitting diode (LED) structure was fabricated, showing controlled mixed near-UV, violet, and red electroluminescence from trivalent europium.
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Methods of Increasing Luminous Efficiency of Phosphor-Converted LED Realized by Conformal Phosphor Coating
Bin Hou,Haibo Rao,Junfei Li +2 more
TL;DR: Experimental results indicate that these two methods are feasible to increase the luminous efficiency of white LEDs and reduce the absorption of Cr ions introduced by ADC.
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Enhanced Optical and Thermal Performance of Eutectic Flip-Chip Ultraviolet Light-Emitting Diodes via AlN-Doped-Silicone Encapsulant
TL;DR: In this paper, a new packaging structure was proposed by introducing a thin encapsulation layer doped with 0.4 wt% AlN nanoparticles (NPs) and uniform quartz lens simultaneously.
Proceedings ArticleDOI
Optimal design of LED array for single-loop CCM buck-boost LED driver
TL;DR: In this paper, the derived transfer functions are verified with SIMPLIS® simulation results and the unity quality factor is preferred for the optimal design of the LED array.