Results 71 to 80 of about 482,559 (249)

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

open access: yesAdvanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies   +2 more
wiley   +1 more source

Recent Advances in Preparing Transparent Phosphor Ceramics for High-Index Color Rendering and High-Power Lighting

open access: yesMolecules
In recent years, high-power white light-emitting diode (wLED)/laser diode (wLD) lighting sources based on transparent phosphor ceramic (TPC) materials have attracted increasing application interest in automotive headlights, projection displays, and space
Boshen Du   +4 more
doaj   +1 more source

Multiwavelength Implantable Oximeter for Wireless Monitoring of Tissue Oxygenation in the Presence of Blood Volume Changes

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents an implantable, wireless, battery‐free oximeter that can continuously monitor physiologically consistent regional tissue oxygenation under dynamic changes of blood volume. This is achieved through multiwavelength photoplethysmography and validated both via Monte Carlo simulations and in vivo rat studies. Different stress events were
Anat Usatinsky   +12 more
wiley   +1 more source

Blue light exposure: Evidence-based impacts on ocular health

open access: yesJournal of Clinical Ophthalmology and Research
The shorter-wavelength electromagnetic radiation known as blue light occupies an increasingly prominent position within contemporary eye health and vision science research. This heightened attention is attributable to the exponential growth in artificial
Zuha   +4 more
doaj   +1 more source

Get it white : color-tunable AC/DC OLEDs [PDF]

open access: yes, 2015
This work was funded by the European Social Fund and the Free State of Saxony through the OrthoPhoto project. We kindly acknowledge the support from NUDEV.Organic light-emitting diodes (OLEDs) have gained considerable attention because of their use of ...
Kliem, Mona   +5 more
core   +1 more source

Photovoltaic Stimulation of Mouse and Pig Retina With Pyrolytic Carbon Microelectrodes Integrated on High‐Density Silicon Solar Cell Arrays

open access: yesAdvanced Healthcare Materials, EarlyView.
In this study, we fabricate photovoltaic retinal implants with pyrolytic carbon electrodes and test their ability to stimulate mouse and pig retinas when illuminated with near‐infrared light. We find increased spiking activity in both animal models compared to spontaneous activity and TTX controls and analyze the spike amplitude, latency and frequency.
Akihiro Matsumoto   +10 more
wiley   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

Designing dual-functional lighting via Eu3+-activated MF2 (M2+ = Ca2+, Sr2+ and Ba2+) red-emitting nanoparticles

open access: yesNano Materials Science
Developing high efficient and stable red-emitting phosphors is very important in the areas of white lighting-emitting diode (white-LED) and plant growth.
Duoyin Chen   +4 more
doaj   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

open access: yesAdvanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

The Study of Lighting Quality of LED and HPS Luminaires Based on Various Road Surface Properties

open access: yesE3S Web of Conferences, 2018
This paper presents analysis of lighting quality in different road surface conditions using the DIALux software. Dry and wet road surfaces are used to study lighting quality by following classifications of the International Commission on Illumination ...
Yoomak Suntiti, Ngaopitakkul Atthapol
doaj   +1 more source

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