Results 211 to 220 of about 3,237,001 (321)

Energy Focusing Metasurface Based Wireless Power Transfer System for Compact Unmanned Mobilities

open access: yesAdvanced Optical Materials, EarlyView.
A miniaturized wireless power transfer system integrates a metasurface lens, microstrip patch antenna, and RF‐CMOS rectifier to enhance mmWave reception efficiency and reduce size. Leveraging mmWave short wavelengths, it achieves high gain on small platforms. The system's polarization independence and wide‐angle reception ensure robust performance.
Wonwoo Lee   +7 more
wiley   +1 more source

Simultaneous Emission Spectral Narrowing and Spin‐Flip Acceleration in Multi‐Resonance Organoboron Emitters via Sequential Indolo‐Fusion π‐Extension

open access: yesAdvanced 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

Crowdsourcing Ideas for the Implementation of Long-Acting Injectable PrEP among Sexual Minority Men in Chicago through an Innovation Tournament. [PDF]

open access: yesImplement Sci Commun
Van Pelt AE   +7 more
europepmc   +1 more source

Putting the “P” Back in Delayed Fluorescence – Silylethynyl Substitution Generates Efficient Pyrene Annihilators for Red‐to‐Blue Photon Upconversion

open access: yesAdvanced Optical Materials, EarlyView.
P‐ or pyrene‐type delayed fluorescence is the original name of triplet‐triplet annihilation. However, pyrene is a poor annihilator. Silylethynyl substitution improves the energetics of pyrene and prevents excimer formation, enabling red‐to‐blue photon upconversion with 29% efficiency. We find tuning substituent steric bulk is key to achieving this high
Jussi Isokuortti   +5 more
wiley   +1 more source

High Sensitivity Spin Defects in Carbon Implanted Diamond

open access: yesAdvanced Optical Materials, EarlyView.
Self‐interstitial spin defects in diamond are fabricated in diamond by high energy carbon irradiation. Along with a systematic characterization of their properties, these spin defects demonstrate high sensitivities surpassing previous studies and coherent manipulation of spin states.
Xingni Chai   +6 more
wiley   +1 more source

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