Solar UV index and UV dose determination with photochromic hackmanites: from the assessment of the fundamental properties to the device
| Autor: | Mika Lastusaari, Antton Curutchet, Pekka Laukkanen, Jari Sinkkonen, Ari Kuusisto, Fikret Mamedov, Petriina Paturi, Isabella Norrbo, Jaakko Mäkelä, Tangui Le Bahers, Tero Laihinen, Erik Wetterskog |
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| Přispěvatelé: | Laboratoire de Chimie - UMR5182 (LC), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Instrument Centre - Department of Chemistry, University of Turku, Uppsala Univ, Angstrom Lab, Dept Engn Sci, S-75121 Uppsala, Sweden, Department of Chemistry [Uppsala, Sueden], Biomedical Center = Biomedicinskt centrum [Uppsala, Sueden] (BMC), Uppsala University-Uppsala University, Department of physics, ANR-17-CE29-0007,TeneMod,Minéraux tenebrescents par modélisation in silico(2017), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon)-Institut de Chimie du CNRS (INC) |
| Rok vydání: | 2018 |
| Předmět: |
Empirical data
Materials science UVC Radiation 02 engineering and technology Radiation 010402 general chemistry 01 natural sciences Electronic states Photochromism General Materials Science Electrical and Electronic Engineering ta116 ComputingMilieux_MISCELLANEOUS Sunlight business.industry Process Chemistry and Technology Radiation dose 021001 nanoscience & nanotechnology 0104 chemical sciences 3. Good health [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry Mechanics of Materials Color changes Optoelectronics 0210 nano-technology business |
| Zdroj: | Materials Horizons Materials Horizons, 2018, 5 (3), pp.569-576. ⟨10.1039/C8MH00308D⟩ Materials Horizons, cRoyal Society of Chemistry, 2018, 5 (3), pp.569-576. ⟨10.1039/C8MH00308D⟩ |
| ISSN: | 2051-6355 2051-6347 |
| DOI: | 10.1039/c8mh00308d |
| Popis: | Extended exposure to sunlight or artificial UV sources is a major cause of serious skin and eye diseases such as cancer. There is thus a great need for convenient materials for the easy monitoring of UV doses. While organic photochromic molecules are tunable for responses under different wavelengths of UV radiation, they suffer from rather poor durability because the color changes involve drastic changes in molecular structure. Inorganic materials, on the other hand, are durable, but they have lacked tunability. Here, by combining computational and empirical data, we confirm the mechanism of coloration in the hackmanites, nature-based materials, and introduce a new technique called thermotenebrescence. With knowledge of the mechanism, we show that we can control and thus tune the energy of electronic states of synthetic hackmanites (Na,M)8Al6Si6O24(Cl,S)2 so that their body color is sensitive to the solar UV index as well as UVA, UVB or UVC radiation levels. Finally, we demonstrate that it is possible to use images taken with an inexpensive cell phone to quantify the radiation dose or UV index. The hackmanite materials thus show great potential for use in portable healthcare both in everyday life and in laboratories. |
| Databáze: | OpenAIRE |
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