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.
Journal ArticleDOI
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
Direct correlation between reliability and pH changes of phosphors for white light-emitting diodes
TL;DR: It is found that the slope of pH change strongly depends on phosphor composition and represents a long-term reliability test result induced by phosphor in an LED package.
Journal ArticleDOI
Impacts of dopant concentration on the carrier transport and recombination dynamics in organic light emitting diodes
TL;DR: In this article, the carrier transport and recombination dynamics of organic light emitting diodes as a function of dopant concentration were studied and a higher carrier mobility and better device performance were observed.
Proceedings ArticleDOI
A novel single-stage high power LEDs driver
TL;DR: In this paper, a single-stage dimmable driver for high-power-rated LEDs is proposed, which combines a buck-boost PFC converter with a flyback converter into a single stage power-conversion circuit.
BookDOI
Kopplung physiologischer und verfahrenstechnischer Parameter beim Wachstum und bei der Produktbildung der Rotalge Porphyridium purpureum
Roselló Sastre,Rosa Maria +1 more
TL;DR: In this article, the Wachstum und the Produktbildung von Porphyridium purpureum unter Hell/Dunkel-Zyklen verschiedener Frequenzen untersucht, da sie eine grosen Einfluss auf die Produktivitat von ausen stehenden Anlagen haben.
Journal ArticleDOI
Effect of uniaxial stress on electroluminescence, valence band modification, optical gain, and polarization modes in tensile strained p-AlGaAs/GaAsP/n-AlGaAs laser diode structures: Numerical calculations and experimental results
TL;DR: In this article, the effects of uniaxial compression on energy-band structures, heavy and light hole mixing, optical matrix elements, and gain in laser diodes with "light hole up" configuration of valence band levels in GaAsP quantum wells with different widths and phosphorus contents are numerically calculated.