Results 51 to 60 of about 3,807,058 (336)

Mid-infrared LEDs versus thermal emitters in IR dynamic scene simulation devices [PDF]

, 2006
In a radical departure from conventional thermal emitter-based dynamic IR scene simulation devices, we have tested InAsSbP/InAs LEDs grown by liquid phase epitaxy and tuned at several peak-emitting wavelengths inside the mid-IR band.
Zinovchuk A. V., Malyutenko V. K.
core   +1 more source

Design of a Horizontally Aligned Perovskite Nanowire LED With Improved Light Extraction

IEEE Journal of the Electron Devices Society, 2021
Within a short span of a few years, metal halide perovskite light-emitting diodes (LEDs) have shot past the 20 percent external quantum efficiency mark. As the material quality and photoluminescent quantum yield of perovskite are already at par with the ...
Qianpeng Zhang, Yuanjing Lin, Haoning Tang, Xiaofei Sun, Bryan Cao, Daquan Zhang, Swapnadeep Poddar, Zhiyong Fan   +7 more
doaj   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

Strain-mediated valence subband engineering in ultrathin AlGaN quantum wells enables TE-polarized dominance for high-efficiency extreme ultraviolet light-emitting diodes [PDF]

AIP Advances
High AlN composition in AlGaN-based heterostructures leads to dominant transverse-magnetic polarized light, severely reducing light extraction efficiency (LEE) of ultraviolet light-emitting diodes. For extreme ultraviolet light-emitting diodes (EUV LEDs)
Jiamang Che, Sheng Hang, Lianjun Hu, Jin Kang, Chang Liu, Duo Wang, Jing Li, Rui Wang, Haibo Liu   +8 more
doaj   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

Advanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio, B. Spedicato, G. Corallo, A. Inguscio, M. Greco, D. Musarò, D. Vergara, A. F. Muro, G. De Sabbata, L. R. Soria, N. Brunetti Pierri, M. Maffia   +11 more
wiley   +1 more source

Rise of intrinsically stretchable electroluminescent materials: toward free-form displays

npj Flexible Electronics
Intrinsically stretchable light-emitting diodes (LEDs) are foundational components for next-generation free-form displays. Here, we present recent advances in electroluminescent materials for intrinsically stretchable LEDs, including molecular ...
Dong Chan Kim, Moon Kee Choi, Dae-Hyeong Kim, Jiwoong Yang   +3 more
doaj   +1 more source

Light-emitting electrochemical cells and solution-processed organic light-emitting diodes using small molecule organic thermally activated delayed fluorescence emitters [PDF]

, 2015
EZ-C thanks the University of St Andrews for support. The authors are grateful to the EPSRC for financial support (grants EP/J01771X and EP/J00916). IDWS is a Royal Society Wolfson Research Merit Award Holder.Two novel charged organic thermally activated
Samuel, Ifor David William, Hedley, Gordon James, Hedley, Gordon J., Antonio Pertegás, Eli Zysman-Colman (1366824), Michael Y. Wong, Ifor D. W. Samuel (1362714), Lisa S. Kölln (1366821), Kolln, Lisa, Zysman-Colman, Eli, Henk J. Bolink (1365726), Guohua Xie, Lisa S. Kölln, Xie, Guohua, Samuel, Ifor D. W., Guohua Xie (535825), Pertegás, Antonio, Ifor D. W. Samuel, Gordon J. Hedley, Gordon J. Hedley (1366815), Wong, Michael Y., Bolink, Henk J., Michael Y. Wong (1366827), Kölln, Lisa S., Antonio Pertegás (1366818), Henk J. Bolink, Eli Zysman-Colman, Zysman-Colman, Eli; id_orcid, Samuel, Ifor David William; id_orcid   +28 more
core   +1 more source

Microstructural, Mechanical, and Textural Evolution of Dissimilar Combination of Laser‐Welded Maraging Steel and 4340 Steel

Advanced Engineering Materials, EarlyView.
The present work reports the microstructural, mechanical, and texture evolution of a dissimilar combination laser‐welded maraging steel with 4340 steel. This is important for aerospace applications. The demand for dissimilar welding is growing rapidly with the requirement of efficient and durable joints.
Bharat Behl, Yu Dong, Alokesh Pramanik, Tapas Kumar Bandyopadhyay   +3 more
wiley   +1 more source

Enhancing the Light-Extraction Efficiency of AlGaN-Based Deep-Ultraviolet Light-Emitting Diodes by Optimizing the Diameter and Tilt of the Aluminum Sidewall

Crystals, 2018
To realize high-efficiency AlGaN-based deep-ultraviolet light-emitting diodes (DUV-LEDs), enhancing their light-extraction efficiency (LEE) is crucial. This paper proposes an aluminum-based sidewall reflector structure that could replace the conventional
Yung-Min Pai, Chih-Hao Lin, Chun-Fu Lee, Chun-Peng Lin, Cheng-Huan Chen, Hao-Chung Kuo, Zhi-Ting Ye   +6 more
doaj   +1 more source

Modeling organic light emitting diodes: a comparison between the conventional and a new carrier recombination models [PDF]

, 2023
Charge carrier recombination is a fundamental process in the operation of light emitting diodes (LEDs). Radiative carrier recombination produces light, which is the desired output for LEDs, and hence should be maximized, whereas the other carrier ...
Inche Ibrahim, Mohd Lukman, Ahmad, Kartini   +1 more
core   +1 more source