Wiley Online Library : Advanced Optical Materials
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Generation of High‐Purity Full Poincaré Beam Arrays via Metasurface Integrated Degenerate Cavity

A metasurface-integrated degenerate cavity laser for the efficient generation of a full Poincaré beam (FPB) array is achieved, with the mode purity of orbital angular momentum (OAM) up to 92.89%. Dual metasurfaces are integrated for the intracavity asymmetric photonic spin-orbit interaction and mode compensation. Such a design strategy enables a self-reproducing...

Wed Apr 24, 2024 11:43
The Improvement of Tin‐Based Perovskite Thin Film Quality to Enhance the Performance of Near‐Infrared PeLEDs Through Thiocyanate Modification

The interface modification of the hole transport layer with methylammonium thiocyanate salts has reduced the surface contact angle and improved wettability, resulting in enhanced dendritic thin films. This has led to a more suitable energy level alignment, thereby improving carrier transport efficiency. The anti-oxidation effect of guanidine thiocyanate...

Wed Apr 24, 2024 11:43
Silk‐Based Functional Inks with Color‐Tunable Light Upconversion for Printing on Arbitrary Surfaces

In this study, printable and paintable silk-based functional inks with hydrophilic upconversion nanoparticles (UCNPs) are prepared via facile hydrothermal synthesis without complex ligand exchange. The developed inks, designed to emit various colors including three primary colors of light, can be patterned on arbitrary substrates, including biological...

Wed Apr 24, 2024 11:43
Beating the Responsivity‐Speed Trade‐Off in Asymmetric GaN‐Based UV Photodetectors: A Novel van der Waals Metal Contact Approach

Wide bandgap semiconductor GaN and van der Waals asymmetric metal contact are integrated to mitigate the Fermi level pinning with an atomically clean metal-semiconductor interface. The absence of interface damage effectively suppresses charge recombination, resulting in a simultaneous enhancement in photoresponse and response speed, thereby successfully...

Wed Apr 24, 2024 11:43
Manipulating Single‐Molecule Exciplex TADF and Deep‐Blue RTP Through Non‐Covalent π–π Interaction in a Molecular Foldamer

The application of intramolecular non-covalent π–π interactions is broadened to the realm of single-molecule optoelectronic emitters, by featuring a face-to-face donor/acceptor stacking configuration with efficient through-space charge transfer. The resulting supramolecular foldamer showcases that the high-performance single-molecule exciplex thermally...

Wed Apr 24, 2024 11:43
Adjustable Super‐linear Photoresponse via Organic Phototransistors with Graded Active Layer Toward Intelligent Contrast Control

Super-linear photoresponse is observed in organic phototransistors based on bulk heterojunction. By modulating the gate voltage, the linearity index can be adjusted from 0.5 to 2.33 with three different work modes of nonlinear, linear, and super-linear, which have a very good application prospect in intelligent contrast control in real time image...

Sun Apr 21, 2024 14:07

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