Fig. 3: Two-colour photoligation system. A Reaction scheme incorporating the ortho-substituted tetrachloride azobenzene (A1), which undergoes photoisomerisation from trans to cis under orange/red light activation. Under blue light irradiation, the photoactivated ketone (K1) transforms into the ketene ...
However, achieving optimal colour purity and device efficiency for blue multiple-resonance thermally activated delayed fluorescence emitters has presented challenges. Here we demonstrate an effective approach to attain superior deep-blue molecules by constructing twisted-boron-/nitrogen-/oxygen-embedded higher...
Photoexcitation experiments on polyparaphenylenes reveal their high photoluminescence quantum yield and the perspective for being true candiates as solid-state polymer-laser materials due to their pronounced signature of blue-green stimulated emission. We present blue-green laser action in polyparaphenylene...
Deep-blue light-emitting diodes (LEDs) (emitting at wavelengths of less than 450nm) are important for solid-state lighting, vivid displays and high-density information storage. Colloidal quantum dots, typically based on heavy metals such as cadmium and lead, are promising candidates for deep-blue...
Solid blue lines, blue circles, and red triangles represent the fit of focal points, focal length, and stretch, respectively, as a function of the applied voltage. c Dynamic beam steering device based on the integration of optical metasurfaces and piezoelectric MEMS mirror. c.i Operational ...
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using calibrated silent-substitution changes in light colour along the blue–yellow axis, we investigated whether mechanisms of colour vision affect the human circadian system and sleep. In a 32.5-h repeated within-subjects protocol, 16 healthy participants were exposed to three different light scenario...
Stabilizing colour and intensity Thermally activated defects in a blue-emitting phosphor can enhance energy transfer to the activator, and compensate for thermal quenching. Philippe F. Smet & Jonas J. Joos Article | 13 February 2017 A zero-thermal-quenching phosphor A blue-emitting phosphor ...
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