Results 91 to 100 of about 62,606 (295)

Photo and electroluminescence of porous silicon layers

Bibechana, 2012
Porous silicon layers were prepared by both chemical and electrochemical methods on n- and ptype Si substrates. In the former technique, light emission was obtained from p-type and n-type samples.
E Haji-Ali
doaj   +1 more source

Three novel iridium (III) complexes containing double chiral atoms for organic light‐emitting diodes

Micro & Nano Letters, 2023
Chiral iridium (III) complexes are very important for the preparation of circularly polarized organic diodes light‐emitting diodes (CP‐OLEDs). Three novel iridium (III) complexes, Ir(dnfppy)2(Cl/pyrrole), Ir(dfppy)2(dpp), and Ir(tfmqz)2(sdpp), have been ...
Gan Cheng, Jun‐jian Lu, Li‐Ya Zhu, Guangzhao Lu   +3 more
doaj   +1 more source

Light Generation and Harvesting in a Van der Waals Heterostructure [PDF]

, 2014
Two-dimensional (2D) materials are a new type of materials under intense study because of their interesting physical properties and wide range of potential applications from nanoelectronics to sensing and photonics.
Kis, Andras, Koman, Volodymyr, Llado, Esther Alarcon, Lopez-Sanchez, Oriol, Morral, Anna Fontcuberta i, Radenovic, Aleksandra   +5 more
core   +2 more sources

Charge Transfer States in Donor–Acceptor Bulk‐Heterojunctions as Triplet–Triplet Annihilation Sensitizer for Solid‐State Photon Upconversion

Advanced Materials Interfaces, EarlyView.
A near‐infrared photosensitizer that facilitates efficient solid‐state photon upconversion by recycling triplets formed within a fullerene‐based donor–acceptor bulk‐heterojunction system is demonstrated. Spectroscopic investigations reveal that the energy of photogenerated charge transfer states of triplet character (3CT) is subsequently transferred to
Maciej Klein, Alexander R. Ireland, Evan G. Moore, Dennis Delic, Ajay K. Pandey   +4 more
wiley   +1 more source

Electroluminescent Sensing Coating for On-Line Detection of Zero-Value Insulators in High-Voltage Systems

Applied Sciences
In high-voltage transmission lines, insulators subjected to prolonged electromechanical stress are prone to zero-value defects, leading to insulation failure and posing significant risks to power grid reliability.
Yongjie Nie, Yihang Jiang, Pengju Wang, Daoyuan Chen, Yongsen Han, Jialiang Song, Yuanwei Zhu, Shengtao Li   +7 more
doaj   +1 more source

Silicon-based organic light-emitting diode operating at a wavelength of 1.5 mu m [PDF]

, 2000
Copyright 2000 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Curry, RJ, Gillin, WP, Gwilliam, R, Knights, AP   +3 more
core   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Impact ionisation electroluminescence in planar GaAs-based heterostructure Gunn diodes:Spatial distribution and impact of doping nonuniformities [PDF]

, 2013
When biased in the negative differential resistance regime, electroluminescence (EL) is emitted from planar GaAs heterostructure Gunn diodes. This EL is due to the recombination of electrons in the device channel with holes that are generated by impact ...
Cumming, D. R. S., Dunn, Geoff, Glover, James, Khalid, Ata, Kuball, Martin H H, Montes Bajo, Miguel, Oxley, Chris. H., Stephen, Alex   +7 more
core   +4 more sources

High Circular Polarization of Electroluminescence Achieved via Self-Assembly of a Light-Emitting Chiral Conjugated Polymer into Multidomain Cholesteric Films.

ACS Nano, 2017
We demonstrate a facile route to obtain high and broad-band circular polarization of electroluminescence in single-layer polymer OLEDs. As a light-emitting material we use a donor-acceptor polyfluorene with enantiomerically pure chiral side-chains.
Daniele Di Nuzzo, Chidambar Kulkarni, Baodan Zhao, Eilam Z. B. Smolinsky, F. Tassinari, S. Meskers, R. Naaman, E. Meijer, R. Friend   +8 more
semanticscholar   +1 more source

TADF‐Emitting Dendrimers for Scalable Bar‐Coating Fabrication of Light‐Emitting Electrochemical Cells

Advanced Materials Technologies, EarlyView.
TADF‐emitting dendrimers promise to enable scalable solution‐based fabrication of efficient electroluminescent devices by the virtue of an attractive set of properties. Here, we report on how light‐emitting electrochemical cells, comprising the TADF‐dendrimer tBuCz2m2pTRZ, can be fabricated by scalable bar‐coating under ambient air and deliver uniform ...
Shi Tang, Dianming Sun, Christian Larsen, Erik Zäll, Eli Zysman‐Colman, Ludvig Edman   +5 more
wiley   +1 more source