Results 71 to 80 of about 7,775,448 (290)

Ultra-directional and high-efficiency µLEDs via gradient index filled micro-horn collimators

Scientific Reports
Micro-LEDs (µLEDs) are poised to transform near-eye AR/VR, display, and optical communication technologies, but they are currently hindered by low light extraction efficiency and non-directional emission. Our study introduces an innovative approach using
Alexander Luce, Rasoul Alaee, Aimi Abass
doaj   +1 more source

Light Extraction Efficiency Analysis of Flip-Chip Ultraviolet Light-Emitting Diodes With Patterned Sapphire Substrate

IEEE Photonics Journal, 2018
This study investigates polarization-dependent light extraction efficiency (ηextraction ) of AlGaN-based flip-chip ultraviolet (UV) light-emitting diodes (LEDs) emitting at 230 nm and 280 nm with microdome-shaped patterning on sapphire ...
Yu Kee Ooi, Jing Zhang
doaj   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

Molecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis, Jack V. Mills, Wojciech Niedzwiedz, Valentine M. Macaulay   +3 more
wiley   +1 more source

A high-efficiency red light-emitting module utilizing PLCC packaging for plant lighting applications

Frontiers in Physics
With the increasing adoption of LEDs in plant lighting applications, reducing costs and enhancing light efficiency have emerged as key research priorities in this domain.
Limin Hu, Yingying Hu, Yingying Hu, Yu Xia, Haiping Peng, Shaokun Wei, Yan Shi   +6 more
doaj   +1 more source

Analysis of light extraction efficiency of GaN-based light-emitting diodes

Journal of Physics: Conference Series, 2011
GaN-based light emitting diodes (LEDs) as one of the most important light source in next-generation solid-state lighting have been extensively studied and remarkable progress has been obtained. However, the light extraction efficiency (LEE) is not sufficient to satisfy application requirements.
Pei Wang, Bin Cao, Zhiyin Gan, Sheng Liu
openaire   +1 more source

Light extraction efficiency enhancement of colloidal quantum dot light-emitting diodes using large-scale nanopillar arrays [PDF]

, 2014
A colloidal quantum dot light-emitting diode (QLED) is reported with substantially enhanced light extraction efficiency by applying a layer of large-scale, low-cost, periodic nanopillar arrays. Zinc oxide nanopillars are grown on the glass surface of the
Hilmi Volkan Demir, Demir, Hilmi Volkan, Mutlugun, E., Wang, J., Evren Mutlugun, Tang, Yuxin, Yuxin Tang, Zhao, Yongbiao, Yang, X., Yang, Xuyong, Sun, X. W., Xuyong Yang, Dang, C., Xiao Wei Sun, Cuong Dang, Tan, Swee Tiam, Mutlugun, Evren, Dev, Kapil, Sun, Xiao Wei, Dang, Cuong, Tan S.T., Swee Tiam Tan, Zhao Y., Wang, Jianxiong, Liu, S., Shuwei Liu, Kapil Dev, Jianxiong Wang, Dev, K., Tang, Y., Liu, Shuwei, Yongbiao Zhao   +31 more
core   +1 more source

USP29‐regulated noncanonical stabilization of the hypoxia‐inducible factor‐α in aggressive prostate cancer

Molecular Oncology, EarlyView.
We identify USP29 as the only DUB mirroring CA9 expression, a marker of hypoxia and HIF pathway activation associated with PCA aggressiveness. USP29 stabilizes HIF‐1α and HIF‐2α via a noncanonical mechanism that is independent of PHD/pVHL activity yet relies on proteasomal regulation, establishing USP29 as a previously unrecognized regulator of hypoxic
Amelie S Schober, Leire Moreno‐Cugnon, Laura Martínez‐Pérez, Amaia Ercilla, Amaia Zabala‐Letona, Adrián Vicente‐Barrueco, Maider Fagoaga‐Eugui, Saioa Garcia‐Longarte, Blanca Calle‐Ciborro, Encarnación Pérez‐Andrés, Onintza Carlevaris, Sara Pozo, Isabel Mendizabal, Ugo Mayor, Arkaitz Carracedo, Violaine Sée, Edurne Berra   +16 more
wiley   +1 more source

Light extraction efficiency improvement and strain relaxation in InGaN/GaN multiple quantum well nanopillars

, 2011
 Light extraction efficiency improvement and strain relaxation were observed in InGaN/GaN multiple quantum well (MQW) nanopillars. InGaN/GaN MQW-based LED nanopillar arrays with different diameters varying from about 120 to 250 nm were fabricated ...
Wang, LJ, Wang, H(王辉), Zhu, JJ, Zhu, JH, Yang, H (杨辉), Zhang, SM (张书明), Jiang, DS, Zhao, DG, Liu, ZS   +8 more
core  

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

Molecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka, Wioleta Cieślik, Wojciech Płaziński, Katarzyna Stępnik, Anna Boguszewska‐Czubara, Elżbieta Kot, Robert Musioł, Mateusz Jasica, Anna Mrozek‐Wilczkiewicz, Katarzyna Malarz   +9 more
wiley   +1 more source

Light Extraction Efficiency in III-Nitride LEDs

Asia Communications and Photonics Conference, 2012
Light extraction efficiency (LEE) of GaN-based LEDs is limits mainly by the high refractive index of GaN. We will introduce methods proposed previously and present new methods to further enhance LEE of GaN-based LEDs.
openaire   +2 more sources