Results 31 to 40 of about 5,944,358 (312)

An Analysis of Mobility Influence in Optoelectronics Parameters in an InGaN/GaN Blue LED

open access: yesCrystals, 2022
Simulations on mobility influence in optoelectronics parameters from an InGaN/GaN blue LED using the Nextnano++ software arepresented in this paper.
Sarai Zarate-Galvez   +7 more
doaj   +1 more source

Low Light CMOS Contact Imager with an Integrated Poly-Acrylic Emission Filter for Fluorescence Detection

open access: yesSensors, 2010
This study presents the fabrication of a low cost poly-acrylic acid (PAA) based emission filter integrated with a low light CMOS contact imager for fluorescence detection. The process involves the use of PAA as an adhesive for the emission filter.
Yonathan Dattner, Orly Yadid-Pecht
doaj   +1 more source

A High Quantum Efficiency Narrow-Band UV-B AlGaN p-i-n Photodiode With Polarization Assistance

open access: yesIEEE Photonics Journal, 2021
We designed and fabricated narrow-band UV-B AlGaN p-i-n photodiodes (PDs) with a full-width at half-maximum (FWHM) of 8 nm by optimizing the Al composition and thickness of the AlGaN layers. To improve the photoelectric response of the narrow-band PDs, a
Qianyu Hou   +10 more
doaj   +1 more source

Red/Near-Infrared Thermally Activated Delayed Fluorescence OLEDs with Near 100% Internal Quantum Efficiency.

open access: yesAngewandte Chemie, 2019
The developing of red thermally activated delayed fluorescence (TADF) emitters, which are attainable for both high-efficient red organic light-emitting diodes (OLEDs) and non-doped deep red/near-infrared (NIR) OLEDs, is full of challenge.
Jiaxiong Chen   +11 more
semanticscholar   +1 more source

Realizing low voltage-driven bright and stable quantum dot light-emitting diodes through energy landscape flattening

open access: yesLight: Science & Applications
Solution-processed quantum dot light-emitting diodes (QLEDs) hold great potential as competitive candidates for display and lighting applications. However, the serious energy disorder between the quantum dots (QDs) and hole transport layer (HTL) makes it
Yiting Liu   +12 more
doaj   +1 more source

Design Principles and Performance Limitation of InGaN Nanowire Photonic Crystal Micro-LEDs

open access: yesIEEE Photonics Journal
While micro-LEDs are crucial for ultrahigh resolution micro-displays, the efficiency of currently reported micro-LEDs degrades dramatically with decreasing size.
Yakshita Malhotra, Xianhe Liu, Zetian Mi
doaj   +1 more source

Recent Advancements in Bulk Processing of Rare‐Earth‐Free Hard Magnetic Materials and Related Multiscale Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
This article provides an overview of recent advancements in bulk processing of rare‐earth‐free hard magnetic materials. It also addresses related simulation approaches at different scales. The research on rare‐earth‐free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns, and
Daniel Scheiber, Andrea Bachmaier
wiley   +1 more source

Stable and efficient pure blue quantum-dot LEDs enabled by inserting an anti-oxidation layer

open access: yesNature Communications
The efficiency and stability of red and green quantum-dot light-emitting diodes have already met the requirements for commercialization in displays.
Wenjing Zhang   +12 more
doaj   +1 more source

Theoretical model development and experimental test application for ultraviolet photoelectron emission yield of spacecraft surface materials

open access: yesJournal of Aeronautical Materials
The space environment strongly affects the on-orbit performance of spacecraft,and ultraviolet(UV) radiation is one of the important factors,which can lead to charge accumulation and charge discharge of spacecraft surface materials.
XIN Wenlong   +6 more
doaj   +1 more source

Efficiencies Evaluation of Photocatalytic Paints Under Indoor and Outdoor Air Conditions

open access: yesFrontiers in Chemistry, 2020
The removal of indoor and outdoor air pollutants is crucial to prevent environmental and health issues. Photocatalytic building materials are an energy-sustainable technology that can completely oxidize pollutants, improving in situ the air quality of ...
Federico Salvadores   +4 more
doaj   +1 more source

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