Results 261 to 270 of about 465,453 (325)
Microcapsule‐Mediated Vibration‐Induced Emission for Real‐Time Visualization of Polymer Deformation
A mechanochromic microcapsule is reported that combines vibration‐induced luminescence (VIE) with mechanically controlled release functionality. By embedding the microcapsules into a polymer matrix, the conformational changes of VIE molecules can be precisely amplified into visual fluorescent color signals, enabling real‐time, high‐sensitivity ...
Jie Sun +7 more
wiley +1 more source
Chip-Scale Optomechanical Frequency Comb with a 1-70 GHz Span. [PDF]
Gou X +5 more
europepmc +1 more source
Circularly Polarized Structural Color Pigments Tunable Across the Full Visible Spectrum
By infusing black dye into spherical shells of polymerized cholesteric liquid crystal, blue, green and red omnidirectional retroreflectors of circularly polarized structural color are achieved. They can be laid out on arbitrary surfaces without any need for index matching binder to define graphical information for robots and Augmented Reality devices ...
Deniz Işınsu Avşar +1 more
wiley +1 more source
Mechanistic Origin of Photodegradation and Impurity Effects in Donor–Acceptor Luminescent Radicals
Purification‐dependent impurities distort the apparent optical and analytical data of TTM‐based radicals without altering their intrinsic photophysical properties. Carbazole attachment elevates the activation barrier of the photodegradation pathway, offering design principles for achieving more robust luminescent radical materials.
Takuya Hosokai +10 more
wiley +1 more source
Optical frequency comb integration in radio telescopes: advancing signal generation and phase calibration. [PDF]
Hyun M +10 more
europepmc +1 more source
The newly developed regioselective strategy for the para‐functionalization of C(sp3)‐bridged phosphorus‐centered heterotriangulene delivers a series of donor‐acceptor emitters exhibiting thermally activated delayed fluorescence. The carbazole‐substituted compounds feature a unique combination of high photoluminescence quantum yields up to 75%, deep ...
Maximilian Schöner +8 more
wiley +1 more source
Effect of Host Anisotropy on Phosphorescent Emitter Orientation and Light Outcoupling in OLEDs
The orientation of the emissive transition dipole moment of a cage‐type Iridium complex can be tuned by the anisotropic alignment of the cohost material, which is expressed as the S$S$ parameter of the film. Thus, the external quantum efficiency of OLEDs can be further enhanced to reach values above 30%.
Bình‐Minh Nguyễn +5 more
wiley +1 more source
Integrated broadband and high-efficiency difference frequency generation. [PDF]
Li H +8 more
europepmc +1 more source
An Efficient Diamond Raman Amplification Scheme Based on Adaptive Temporal Synchronization
This work reveals an adaptive temporal synchronization effect in delayed diamond Raman amplification, where the Stokes pulse shifts toward the fundamental peak. A periodic amplification scheme based on this phenomenon enables efficient pump recycling and enhanced energy conversion, offering a robust, delay‐tolerant strategy for advanced nonlinear ...
Hao Zheng +7 more
wiley +1 more source

