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Showing 1 to 6 of 6 for “"Photochromes"”.
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Switching hybrid polymers with physically and covalently entrapped organic photochromes
… and slower kinetics for covalently bonded photochromes is probably due to sterical hindrance. Addition of proper stabilisers increases the photostability: The employment of UV light stabilisers, excited state quenchers and HALS was found to be beneficial but not sufficient. Besides the …
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Development of a new actinometric method for polychromatic light irradiation. Application to photochromes, drugs and stilbenoids
The photostability data of chemical species is usually described based upon models using equations applicable to standard zero-, first- or second-order kinetics (classical thermal order kinetics) and other such models. These thermal order kinetic models have certain limitations, however, regarding …
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Glasbildende Sternmoleküle für photoschaltbare cholesterische Phasen
… Phase erzeugt wird, muss auf jeden Fall ein photochromes Element vorhanden sein. Wird nun die cholesterische Phase mit Licht geeigneter Wellenlänge bestrahlt, dann führt dies beim Photochrom zu einer Isomerie, z. B. trans-cis-Isomerie. Die dadurch veränderte Molekülgeometrie wiederum führt, …
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Predicting Kinetics of Spin-Dependent Reactions in an External Magnetic Field with Nonadiabatic Statistical Theory
… relaxation mechanisms of spirooxazine-based photochromes, aiming to design more efficient photochromic materials. Furthermore, we demonstrate that the coordination of a spirooxazine ligand to a copper(II) complex with potential long decoherence times provides different profiles for hyperfine …
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Design and synthesis of organic chromophores for imaging, lithography and organic electronics
… In Chapter 3, optical lithography with organic photochromes is demonstrated. In the past, the formation of microscale patterns in the far field by light has been diffractively limited in resolution to roughly half the wavelength of the radiation used. We demonstrated lines with an -4- average …
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Caractérisation des couches minces de WO₃ cristallin déposées par pulvérisation réactive
Dans ce travail nous étudions les couches minces de WO₃ cristallin préparées par pulvérisation réactive RF, en vue de les utiliser comme électrochromes ou contre-électrodes dans les fenêtres intelligentes. Des mesures spectrophotométriques, électrochimiques et d’impédance complexe ont été …