Light-emitting diodes
Reads0
Chats0
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
More filters
Polymer light-emitting electrochemical cells : Utilizing doping for generation of light
TL;DR: The current implementation of conjugated polymers (conducting plastics) in a wide range of devices promises to bring the vision of a new generation of flexible, efficient and low-cost applica....
Journal ArticleDOI
Using agglomerated Ag grid to improve the light output of near ultraviolet AlGaN-based light-emitting diode
TL;DR: In this paper, mesh-patterned Ag grid was used to enhance the light output power of near ultraviolet (385nm) AlGaN-based light emitting diode (LEDs).
Proceedings ArticleDOI
Estimation of internal junction temperature & thermal resistance of light-emitting diodes using external luminous flux measurements
TL;DR: In this article, the junction temperature and thermal resistance of a single-input single-output (SISO) LED were estimated from the luminous flux measurements, which can be obtained relatively easily.
Journal ArticleDOI
Development of a Low-Cost SIA-Based Analyser for Water Samples.
TL;DR: An automated multiparametric water analyser was developed and evaluated and it was concluded that the analyser is appropriate for routine use and has potential for an increased number of simultaneous methods and for enhanced capabilities if new versions of the software are developed.
Proceedings ArticleDOI
Implementation of continuous VLC modulation schemes on commercial LED spotlights
TL;DR: In this paper, a low-cost solution that is able to maintain linearity over virtually the entire intensity range is presented by incorporating a feedback loop that compensates for the non-linear parameters of the circuit's active components, including the LED.
References
More filters
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.