Results 11 to 20 of about 922 (172)

Tailoring Photochromism Beyond Human Eye Visibility: On/Off Switchable NIR Absorption in an Aluminosilicate. [PDF]

Angew Chem Int Ed Engl
A new photochromic material was developed. Its on/off‐switchable absorption band is situated completely outside the human eye's visibility, in the near‐infrared (NIR) region, a feature never reported before. The photochromism mechanism in this aluminosilicate is elucidated by combining experimental as well as computational results, and the material's ...
Muurinen B, Byron H, Kreivilä T, Vastamäki R, Vuori S, Galica T, Machado IP, Granroth S, Ali B, Karppinen M, Heinmaa I, Todorović M, Rullan R, Steinmann S, Le Bahers T, Lastusaari M.   +15 more
europepmc   +3 more sources

Dutch Costume Postcard

, 1910
Photochrome of a street scene in Volendam, The Netherlands, with subjects, mostly girls, in traditional Dutch costume.

core   +9 more sources

Synthèse et étude de ligands diaryléthènes photochromes de type Salen : Compréhension de l'interaction métal-photochrome pour la commutation optique [PDF]

, 2013
This work is devoted to the design of novel photo-responsive systems. In this field of research, our team focuses on organic photochromic molecules called diarylethene.
Guérin, Juliette
core   +3 more sources

Contrasted photochromic and luminescent properties in dinuclear Pt(II) complexes linked through a central dithienylethene unit [PDF]

, 2016
International audienceWe disclose two unprecedented complexes built with a central dithienylethene photochrome connecting two cyclometalated Pt(ii) moieties either on the reactive carbon atoms or on the lateral non-reactive carbon atoms of the ...
Roberto, D., Wong, K.M.-C., Jacquemin, D., D. Roberto, Colombo, A., A. Boucekkine, D. Jacquemin, Y. Zhu, J. Boixel, H. Le Bozec, Guerchais, V., Boucekkine, A., A. Colombo, K. M. Wong, Benmensour, M.A., Le Bozec, H., Boixel, J., M. A. Benmensour, V. Guerchais, Zhu, Y.   +19 more
core   +1 more source

Holography with Photochromic Diarylethenes [PDF]

Materials, 2019
Photochromic materials are attractive for the development of holograms for different reasons: they show a modulation of the complex refractive index, meaning they are suitable for both amplitude and phase holograms; they are self-developing materials, which do not require any chemical process after the light exposure to obtain the final hologram; the ...
Oggioni L., Pariani G., Zamkotsian F., Bertarelli C., Bianco A.   +4 more
openaire   +2 more sources

Nahinfrarot‐Photoschalten durch direkte Anregung—die nächste Herausforderung

Angewandte Chemie, EarlyView.
Molekulare Photoschalter können endlich direkt mit Licht aus dem Nahinfrarotbereich angeregt werden. Dieser Kurzaufsatz fasst den derzeitigen Entwicklungsstand, die Designprinzipien für niedrigenergetische Lichtresponsivität und die dadurch möglichen außergewöhnlichen Anwendungen zusammen.
Diptiprava Sahoo, Elias Ciekalski, Henry Dube   +2 more
wiley   +1 more source

Azobenzene-Containing Schiff-Bases—Syntheses and Dyes Applications

Colorants
Azo-Schiff bases contain an azo photochrome showing isomerization accompanying with color change, and an imine moiety (which can contribute to the metal complexation capability).
Estelle Leonard, China Takeda, Takashiro Akitsu   +2 more
doaj   +1 more source

Die Schwelle überschreiten: Kontrolle supramolekularer Polymerisation durch photostationäre Zustände

Angewandte Chemie, EarlyView.
Intermediäre photostationäre Zustände regulieren die Konzentration eines polymerisationsaktiven Monomers. Sobald die Keimbildungsschwelle überschritten wird, werden geringfügige wellenlängenabhängige Änderungen der Isomerenverteilung zu einer nichtlinearen supramolekularen Assemblierungsantwort verstärkt.
Deepu George, Jiarong Wu, Leo Greb, Vladimir Stepanenko, Aidan Izuagbe, Lutz Nuhn, Frank Würthner, Jake L. Greenfield   +7 more
wiley   +1 more source

Molecular Preorganization Unlocks Reversible Solid‐State Photoconversion in Dianthrylnaphthalene‐Based Molecular Solar Thermal Systems

Angewandte Chemie International Edition, EarlyView.
Three dianthrylnaphthalenes were synthesized and investigated for molecular solar thermal (MOST) energy storage. Naphthyl‐based bridging units preorganize the two anthracene moieties face‐to‐face, leading to improved photoisomerization quantum yield (QY) and unlocked bidirectional photoswitching in the solid state compared to previously reported ortho ...
Nicolò Baggi, Lidiya M. Muhammad, Helen Hölzel, Liang Fei, Rebecca J. Salthouse, Mariusz Kubus, Sarah Plutzar, Magnus B. Johansen, Kurt V. Mikkelsen, Kasper S. Pedersen, Kasper Moth‐Poulsen   +10 more
wiley   +1 more source

Near Infrared Photoswitching by Direct Excitation—A Next Frontier

Angewandte Chemie International Edition, EarlyView.
Molecular photoswitches finally enter the spectral realm of near‐infrared for their direct excitation. This minireview summarizes the current state‐of‐the‐art, the design principles for achieving such low‐energy light responsiveness, and the unique applications that are unlocked by it.
Diptiprava Sahoo, Elias Ciekalski, Henry Dube   +2 more
wiley   +1 more source