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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Journal ArticleDOI
Pulsed laser deposition of aluminum nitride films: Correlation between mechanical, optical, and structural properties
Lilyana Kolaklieva,V. Chitanov,A. Szekeres,Krassimira Antonova,P. Terziyska,Zsolt Fogarassy,Peter Petrik,Ion N. Mihailescu,Liviu Duta +8 more
TL;DR: In this paper, the hardness of aluminum nitride (AlN) films was investigated by depth-sensing nanoindentation and the optical properties were studied by FTIR spectroscopy and UV-near IR ellipsometry.
Proceedings ArticleDOI
Numerical analysis of the indium compositional variation on the efficiency droop of the GaN-based light-emitting diodes
Maaz Islam,Muhammad Usman,Urooj Mushtaq,Nabila Nawaz,Khasan S. Karimov,Nazeer Muhammad,Kiran Saba +6 more
TL;DR: A wedge-shaped indium grading with a better optoelectronic performance in comparison to the other three structures is reported in this paper. But the proposed structure has significantly improved internal quantum efficiency, light output power and radiative recombination.
Proceedings ArticleDOI
Cluster configurations of red, green, and blue LEDs for white light illumination
TL;DR: In this article, the effects of color variability in light emitting diode (LED) sources made of red, green, and blue LEDs (RGB-LEDs) are investigated.
Journal ArticleDOI
Impact of optically nonuniform luminescence coupling effect to the limiting cell conversion efficiency in InGaP/GaAs/Ge triple junction solar cell
TL;DR: In this paper, the impact of nonuniform spatial distribution of the luminescence coupling (LC) effect to the limiting cell conversion efficiency of multijunction solar cells (MJSCs) was investigated.
Journal ArticleDOI
Development of an Illumination Measurement Device for Color Distribution Based on a CIE 1931 XYZ Sensor
TL;DR: An easy-to-use measurement device for illumination distribution that incorporates CIE 1931 color sensors and the ARM-based 96 MHz microcontroller in the control module for measurement and data processing.
References
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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.
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.