Results 181 to 190 of about 1,429,207 (385)
Chiral Sensing of Amino Acids under Visible Light via Hydroxypropyl Cellulose Gels
Advanced Optical Materials, EarlyView.Hydroxypropyl cellulose gels enable visible‐light‐based chiral detection of amino acid enantiomers. This study showcases their structural color properties for distinguishing phenylalanine and alanine enantiomers. The gels exhibit pH‐responsive color changes, high sensitivity at low concentrations (0.2 wt.%), and long‐term stability, offering ...
Luyao Huang +6 more
wiley +1 more source
Advanced Optical Materials, EarlyView.Picosecond spin current pulses generated by ferrimagnetic GdCo are studied via THz emission spectroscopy. Due to the GdCo micromagnetic structure, the spin current vanishes at compensation when a magnetic field is applied but persists for zero field. At room temperature, the THz spin current is dominated by Co. At low temperatures, Gd can significantly
Guillermo Nava Antonio +10 more
wiley +1 more source
The Importance of Metal Ion Impurity Bands in the Photoluminescence of Halide Double Perovskites
Advanced Optical Materials, EarlyView.Many publications have associated emission spectral features of double perovskite halides in the region at 460–470 nm with “pristine” materials. This leads to not only false observations but also incorrect conclusions concerning the transformation of dark into bright excitons or boosting self‐trapped exciton emission.
Hei‐Yui Kai +4 more
wiley +1 more source
The Impact of Donor‐Orientation on the Emission Properties of Chlorinated Trityl Radicals
Advanced Optical Materials, EarlyView.Chlorinated trityl radicals with electron‐donating groups enable efficient red emission for optoelectronics. Donor orientation and steric constraints regulate vibronic coupling, influencing luminescence. A novel trityl derivative with restricted donor alignment minimizes non‐radiative decay, enhancing quantum yield.
Mona E. Arnold +9 more
wiley +1 more source
Advanced Optical Materials, EarlyView.Curcuminoid boron difluoride dyes containing triphenylamine units are prepared and their photophysical and electrochemical properties are investigated. These new light‐emitting dyes are used in organic light‐emitting diodes (OLEDs) emitting at 800 nm with 1% external quantum efficiency, and show low threshold amplified spontaneous emission in thin ...
Anthony D'Aléo +11 more
wiley +1 more source
Advanced Optical Materials, EarlyView.Sequential indolo‐fusion π‐extension as a rational design strategy to further narrow the emission bandwidth of multi‐resonance thermally activated delayed fluorescence is introduced. By fusing one or two additional indole moieties to the periphery of Cz‐B, gradual spectra narrowing and accelerated triplet–singlet exciton spin conversion are ...
Hyukgi Min, Takuma Yasuda
wiley +1 more source
Handover Scheme in LEO Satellite Networks Based on QoE for Streaming Media Services. [PDF]
Sensors (Basel)Feng H, Zhu L.
europepmc +1 more source
Advanced Photonics Research, EarlyView.This work introduces a low‐loss diffractive neural network, fabricated using an imprinting technique with parowax material, for recognizing and manipulating the topological charge of orbital angular momentum (OAM) waves. It is also demonstrated that the low‐loss diffractive network can perform mathematical operations based on the topological charges of
Wei Jia +4 more
wiley +1 more source
Reservoir computing-based signal compensation for laser inter-satellite communications. [PDF]
Sci RepWen F, Yong J, Li JJ, Diao SQ.
europepmc +1 more source