Results 21 to 30 of about 8,090 (214)
Physica Scripta, 2022 Abstract We report a numerical analysis of the variation of Aluminium (Al) composition in Al Gallium Nitride (AlGaN)-based Deep-Ultraviolet Light-Emitting Diode (DUV-LED) and its effects on the carrier concentration, radiative recombination, and photoluminescence (PL).
Mohammad Amirul Hairol Aman +5 more
openaire +2 more sources
Subjective preference of light colour and LED lighting [PDF]
, 2015 The main objective of this work is to investigate the subjective preferences for lighting environments under different LED spectral power distributions (SPDs) and to analyse the different existing colour quality descriptors in order to recommend the best
Dangol, Rajendra
core +1 more source
AIP Advances, 2021 Deep ultraviolet light-emitting diodes (DUV LEDs) are promising light sources for disinfection, especially during the pandemic of novel coronavirus (COVID-19). Despite much effort in the development of DUV LEDs, the device temperature and ideality factor
Yanjun Liao +6 more
doaj +1 more source
On the UV dimensions of Loop Quantum Gravity [PDF]
, 2016 Planck-scale dynamical dimensional reduction is attracting more and more interest in the quantum-gravity literature since it seems to be a model independent effect.
Ronco, Michele
core +3 more sources
Nanoscale Research Letters, 2018 This work reports a nearly efficiency-droop-free AlGaN-based deep ultraviolet light-emitting diode (DUV LED) emitting in the peak wavelength of 270 nm. The DUV LED utilizes a specifically designed superlattice p-type electron blocking layer (p-EBL).
Zi-Hui Zhang +7 more
doaj +1 more source
Band-Engineered Structural Design of High-Performance Deep-Ultraviolet Light-Emitting Diodes
Crystals, 2021 In this study, systematic structural design was investigated numerically to probe into the cross-relating influences of n-AlGaN layer, quantum barrier (QB), and electron-blocking layer (EBL) on the output performance of AlGaN deep-ultraviolet (DUV) light-
Jih-Yuan Chang +5 more
doaj +1 more source
Colorimetry and efficiency of white LEDs : Spectral width dependence [PDF]
, 2012 The potential colour rendering capability and efficiency of white LEDs constructed by a combination of individual red, green and blue (RGB) LEDs are analysed.
Davis, Haitz, Martin, O'Donnell, Ohno
core +1 more source
Nanoscale Research Letters, 2019 AlGaN-based deep ultraviolet (DUV) light-emitting diodes (LEDs) suffer from electron overflow and insufficient hole injection. In this paper, novel DUV LED structures with superlattice electron deceleration layer (SEDL) is proposed to decelerate the ...
Jiahui Hu +9 more
doaj +1 more source
Crystals, 2022 A novel method of utilizing an intelligent algorithm to guide the light extraction surface structure designing process for deep-ultraviolet light emitting diodes (DUV-LEDs) is proposed and investigated.
Zizheng Li +5 more
doaj +1 more source
Cathodoluminescence of stacking fault bound excitons for local probing of the exciton diffusion length in single GaN nanowires [PDF]
, 2014 We perform correlated studies of individual GaN nanowires in scanning electron microscopy combined to low temperature cathodoluminescence, microphotoluminescence, and scanning transmission electron microscopy.
Bruno Daudin +5 more
core +4 more sources