MJEJRI, Issam; DOHERTY, Cara M.; RUBIO-MARTINEZ, Marta; DRISKO, Glenna; ROUGIER, Aline

doi:10.1021/acsami.7b13647

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MJEJRI, Issam
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

DOHERTY, Cara M.
Commonwealth Scientific and Industrial Research Organisation [Australia] [CSIRO]

RUBIO-MARTINEZ, Marta
Commonwealth Scientific and Industrial Research Organisation [Australia] [CSIRO]

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Ce document a été publié dans

ACS Applied Materials & Interfaces. 2017-11-07, vol. 9, n° 46, p. 39930-39934

Washington, D.C. : American Chemical Society

Résumé en anglais

Devices displaying controllably tunable optical properties through an applied voltage are attractive for smart glass, mirrors, and displays. Electrochromic material development aims to decrease power consumption while increasing the variety of attainable colors, their brilliance, and their longevity. We report the first electrochromic device constructed from metal organic frameworks (MOFs). Two MOF films, HKUST-1 and ZnMOF-74, are assembled so that the oxidation of one corresponds to the reduction of the other, allowing the two sides of the device to simultaneously change color. These MOF films exhibit cycling stability unrivaled by other MOFs and a significant optical contrast in a lithium-based electrolyte. HKUST-1 reversibly changed from bright blue to light blue and ZnMOF-74 from yellow to brown. The electrochromic device associates the two MOF films via a PMMA-lithium based electrolyte membrane. The color-switching of these MOFs does not arise from an organic-linker redox reaction, signaling unexplored possibilities for electrochromic MOF-based materials.< Réduire

Mots clés en anglais

color switching

device

electrochromism

HKUST-1

metal−organic frameworks

thin films

DOI

http://dx.doi.org/10.1021/acsami.7b13647

Project ANR

Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026