Results 71 to 80 of about 8,336,119 (285)

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

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

, 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
Chih-Hao Lin, Zhi-Ting Ye, Cheng-Huan Chen, Chun-Peng Lin, Yung-Min Pai, Chun-Fu Lee, Hao-Chung Kuo   +6 more
core   +1 more source

Somatostatin receptor 4 (SSTR4) is a tumor suppressor in cutaneous and head & neck squamous cell carcinomas

Molecular Oncology, EarlyView.
This study identifies somatostatin receptor 4 (Sstr4) as a critical tumor suppressor against skin and head/neck cancers (HNSCC, cSCC, and BCC). The loss of Sstr4 removes a check on cell growth, causing hyperactivation of the MAPK‐ERK signaling pathway (↑).
Ali Taqvi, Tuan Khang Huynh, Adway Kadam, Zahra Kardan, Yue Yan, Amina Jamal Laham, Sampath Kumar Loganathan   +6 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

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  

Strain modulated nanostructure patterned AlGaN-based deep ultraviolet multiple-quantum-wells for polarization control and light extraction efficiency enhancement

, 2019
Strain modulated nanostructure patterned AlGaN-based deep ultraviolet multiple-quantum-wells for polarization control and light extraction efficiency ...
Dai, Jiangnan, Sheikhi, Moheb, Guo, Wei, Long, Hanling, Li, Liang, Xu, Houqiang, Chen, Changqing, Ye, Jichun, Jiang, Jie'an   +8 more
core   +1 more source

Gut microbiota alterations in patients with non‐small‐cell lung cancer undergoing chemoradiotherapy

Molecular Oncology, EarlyView.
We investigated the impact of concurrent chemoradiotherapy (CRT) on the gut microbiota in patients with locally advanced non‐small‐cell lung cancer. Overall gut microbiota composition remained largely stable throughout CRT while antibiotic exposure may influence microbial diversity.
Hanne Marte Nymoen, Zhi Zhao, Henrik Horndalsveen, Maria Moksnes Bjaanæs, Bjørn Henning Grønberg, Tarje Halvorsen, Tesfaye Madebo, Marianne Aanerud, Jussi Koivunen, Kersti Oselin, Saulius Cicenas, Nina Helbekkmo, Jarkko Ahvonen, Maria Silvoniemi, Tine Norman Alver, Tonje Dalen, Åsa Kristina Öjlert, Saima Jamil Farooqi, Åslaug Helland, Vilde Drageset Haakensen   +19 more
wiley   +1 more source

Nanoparticle meta-grid for enhanced light extraction from light emitting devices [PDF]

, 2020
Based on a developed theory, we show that introducing a meta-grid of sub-wavelength-sized plasmonic nanoparticles (NPs) into existing semiconductor light-emitting-devices (LEDs) can lead to enhanced transmission of light across the LED-chip/encapsulant ...
Kornyshev, Alexei, Pendry, John, Sikdar, Debabrata   +2 more
core   +1 more source

Extracellular vesicle lipidomics liquid biopsy reveals systemic and tumor microenvironment metabolic reprogramming in ovarian cancer

Molecular Oncology, EarlyView.
Extracellular vesicle (EV) lipidomic profiling of plasma and ascites from patients with high‐grade serous ovarian cancer and of ovarian cancer cell lines reveals enrichment of triglycerides (TGs), diacylglycerols (DGs), phosphatidylcholine (PCs), sphingomyelins (SMs), reflecting tumor metabolic reprogramming.
Shikha Rani, Dominic Guanzon, Andrew Lai, Katherin Scholz‐Romero, Sarah Reed, Edita Ritmejeryte, Rohan Lourie, Naven Chetty, Kaltin Ferguson, Carlos Salomon   +9 more
wiley   +1 more source

Phosphor-Free Three-Dimensional Hybrid White LED With High Color-Rendering Index

IEEE Photonics Journal, 2019
In this study, we demonstrate the phosphor-free hybrid white LED devices with the combination of the truncated-hexagonal-pyramid (THP) structures and quantum dots (QDs) (THPQD).
Jie Zhao, Tongbo Wei, Ji Zhang, Yonghui Zhang, Xuecheng Wei, Jianchang Yan, Junxi Wang, Jinmin Li   +7 more
doaj   +1 more source