Results 91 to 100 of about 22,469 (293)
Upconversion-like Photolysis of BODIPY-Based Prodrugs via a One-Photon Process
, 2019 Photochemical reactions at lower energy than the absorption window are currently achieved by multi-photon processes, including two-photon absorption and photon upconversion, which have limited energy utilization efficiency.
Xin Lan (422210) +17 more
core +1 more source
Machine‐Learning‐Assisted Onset‐Time Determination in Transient Luminescence Thermometry
Advanced Intelligent Discovery, EarlyView.Artificial neural networks enable autonomous extraction of onset times from transient heating curves in luminescence thermometry. Using Ln3+‐doped upconverting nanoparticles as luminescent thermometers, we combine experimental transients with physically motivated synthetic curves to enhance data diversity and improve generalization.
David J. Sousa +3 more
wiley +1 more source
Mechanistische Diversität in der photoangeregten Radikal‐Redoxchemie: Eine kritische Evaluierung
Angewandte Chemie, EarlyView.Für viele prominente Beispiele der Photoredox‐Katalyse wird angenommen, dass sie über die Anregung einer offenschaligen („open‐shell“) Zwischenform des Katalysators ablaufen. Es wird jedoch intensiv darüber diskutiert, ob solche Mechanismen realistisch sind und, falls ja, wie genau sie ablaufen können.
Samuel J. Horsewill +3 more
wiley +1 more source
Advanced Photonics ResearchRecent reports of upconversion and white light emission from graphitic particles warrant an explanation of the physics behind the process. A model is offered, wherein the upconversion is facilitated by photoinduced electronic structure modification ...
Rohin Sharma +5 more
doaj +1 more source
, 2018 A luminescent solar concentrator (LSC)-based photovoltaic (PV) system, consisting of an LSC panel that harvests light and an edge-mounted solar cell that produces electricity using the photoluminescent light, is promising for semitransparent building ...
Su-Jin Ha (2061058) +11 more
core +1 more source
A Multifunctional Nanocomposite Hydrogel for Endoscopic Tracking and Manipulation
Advanced Intelligent Systems, 2020 Herein, the fabrication of multi‐responsive and hierarchically organized nanomaterial using core‐shell SrF2 upconverting nanoparticles, doped with Yb3+, Tm3+, Nd3+ incorporated into gelatin methacryloyl matrix, is reported.
Adriana Augurio +10 more
doaj +1 more source
Recent Progress on Rare-Earth-Doped Upconversion Nanomaterials for Bioassay Applications
BiosensorsRare-earth-doped upconversion nanoparticles (UCNPs) have been widely used in biological detection due to their unique anti-Stokes shift, stable chemical properties, tunable emission wavelengths, and low biotoxicity.
Jiling Xu +5 more
doaj +1 more source
Extended Near-Infrared Photoactivity of Bi6Fe1.9Co0.1Ti3O18 by Upconversion Nanoparticles
Nanomaterials, 2018 Bi6Fe1.9Co0.1Ti3O18 (BFCTO)/NaGdF4:Yb3+, Er3+ (NGF) nanohybrids were successively synthesized by the hydrothermal process followed by anassembly method, and BFCTO-1.0/NGF nanosheets, BFCTO-1.5/NGF nanoplates and BFCTO-2.0/NGF truncated tetragonal ...
Wen Ge +4 more
doaj +1 more source
Enhanced upconversion photoluminescence by novel plasmonic structures [PDF]
, 2018 The emerging field of plasmon-enhanced upconversion photoluminescence has a significant impact on a variety of technologies, including high-efficiency solar energy systems and biotechnology.
Qin, Heng
core +1 more source
Mechanistic Diversity in Photoexcited Radical Redox Chemistry: A Critical Evaluation
Angewandte Chemie International Edition, EarlyView.Many high‐profile examples of photoredox catalysis are proposed to proceed via excitation of an open‐shell intermediate form of the catalyst. However, there is much debate over whether such mechanisms are realistic and, if so, exactly how they can occur.
Samuel J. Horsewill +3 more
wiley +1 more source