Results 81 to 90 of about 4,109,997 (207)

Optimizing InGaN Micro-LED Efficiency: Investigating the Internal Quantum Efficiency and Ideality Factor Connection

We present a significant enhancement of internal quantum efficiency (IQE) exceeding 90% in InGaN-based Micro-light-emitting diodes (Micro-LEDs) achieved through sidewall passivation using atomic layer deposition (ALD).
Li, Yanfei, Liu, Zhaojun, Hyun, Byung Ryool, Zhanghu, Mengyuan, Liu, Yibo   +4 more
core   +1 more source

The origin of the high diode-ideality factors in GaInN/GaN multiple quantum well light-emitting diodes

, 2018
We report on a significant decrease in the diode-ideality factor of GaInN/GaN multiple quantum well light-emitting diodes (LEDs), from 5.5 to 2.4, as Si-doping is applied to an increasing number of quantum barriers (QBs). The minimum ideality factor of 2.
Kim, JK, Koleske, DD, Xu, JR, Schubert, EF, Zhu, D, Crawford, MH, Noemaun, AN   +6 more
core   +1 more source

Impact of Age on the Diagnostic Yield of Routine EEG in People With Childhood or Juvenile Absence Epilepsy: A Cross‐Sectional Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background We aimed to identify the proportion of individuals with a confirmed diagnosis of childhood absence epilepsy (CAE) or juvenile absence epilepsy (JAE) who show a negative routine EEG (rEEG), and to determine the main factors associated with this finding.
Francesco Fortunato, Alessia Giugno, Miriam Sturniolo, Enrico Fratto, Pio Zoleo, Francesca Felicia Operto, Ilaria Sammarra, Antonio Gambardella   +7 more
wiley   +1 more source

Experimental Characterization of Sol–Gel Spin-Coated Al-Doped ZnO/CdTe Heterojunction Thin Films

East European Journal of Physics
Al-doped zinc oxide (AZO) has attracted sustained interest as a low-cost, earth-abundant n-type transparent conducting oxide for solution-processed heterojunction photovoltaics.
Bakhodir B. Akhmedov, Tokhirbek I. Rakhmonov, Mekhriddin F. Akhmadjonov, Sherzod Sh. Abdullayev, Ikhtiyor M. Tursunov, Fakhriddin T. Yusupov   +5 more
doaj   +1 more source

microRNA‐7‐5p and α‐Synuclein SAA Predict Parkinson's Disease Phenoconversion

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corroborate blood neuron‐derived extracellular vesicle (NDEV) alpha‐synuclein (αSyn), the CSF αSyn seed amplification assay (αSyn‐SAA), and blood microRNA‐7‐5p (miR‐7‐5p) as markers for Parkinson's disease (PD) phenoconversion and determine if combining these markers would help select subjects who would be more likely to phenoconvert.
Shayan Zadegan, Praveen Velammal, Kanmani Muthiah, Madhu Jatty, Christopher Adams   +4 more
wiley   +1 more source

Integration of spatially resolved ideality factor into local cell efficiency analysis with photoluminescence

, 2017
An alternative method to image essential variables like dark saturation current density, series resistance, and cell efficiency is introduced in this work.
Schneller, Eric, Davis, Kristopher O., Schoenfeld, Winston V., Kristopher O. Davis, Eric Schneller, Kortan Öğütman, Öğütman, Kortan, Vijay Yelundur, Winston V. Schoenfeld, Yelundur, Vijay   +9 more
core   +1 more source

Triangular Index Ratio as an Alternative Method to the Alpha Angle for Defining the Presence of Cam Morphology: A Prospective Cohort Study

Arthritis Care &Research, EarlyView.
Objective Cam morphology, which is a significant risk factor for hip osteoarthritis, is commonly quantified by the alpha angle (AA). This study aims to explore the potential of the triangular index ratio (TIR) to quantify cam morphology on anteroposterior radiographs by assessing the association between TIR‐defined cam morphology and the development of
Jinchi Tang, Fleur Boel, Michiel M. A. van Buuren, Noortje S. Riedstra, Myrthe A. van den Berg, Jos Runhaar, Sita Bierma‐Zeinstra, Rintje Agricola   +7 more
wiley   +1 more source

Barrier Inhomogeneity of Schottky Diode on Nonpolar AlN Grown by Physical Vapor Transport

IEEE Journal of the Electron Devices Society, 2019
An aluminum nitride (AlN) Schottky barrier diode (SBD) was fabricated on a nonpolar AlN crystal grown on tungsten substrate by physical vapor transport.
Qin Zhou, Honglei Wu, Hui Li, Xi Tang, Zuoyan Qin, Dan Dong, Yan Lin, Chengjin Lu, Ran Qiu, Ruisheng Zheng, Jiannong Wang, Baikui Li   +11 more
doaj   +1 more source

Frailty Predicts Incident Osteoporotic Fractures in Veterans with Rheumatoid Arthritis

Arthritis Care &Research, EarlyView.
Objective Rheumatoid arthritis (RA) is associated with an increased risk of frailty and osteoporosis, but the relationship between frailty and incident osteoporotic fractures in RA is underexplored. Methods Data were from the Veterans Affairs (VA) Rheumatoid Arthritis Registry. Frailty was measured using the VA Frailty Index (VAFI).
Katherine D. Wysham, Hannah F. Brubeck, Aaron Baraff, Punyasha Roul, Namrata Singh, James S. Andrews, Grant W. Cannon, Gary A. Kunkel, Ted R. Mikuls, Bryant R. England, Dolores M. Shoback, Patricia P. Katz, Jose M. Garcia, Ariela R. Orkaby, Joshua F. Baker   +14 more
wiley   +1 more source

Coupling Ideality of Integrated Planar High-Q Microresonators [PDF]

Chip-scale optical microresonators with integrated planar optical waveguides are useful building blocks for linear, nonlinear, and quantum-optical photonic devices alike.
Liu, Junqiu, Geiselmann, Michael, Pfeiffer, Martin H.  P., Kippenberg, Tobias J.   +3 more
core   +2 more sources