Fabrication of Large Area Crack-Free 2D and 3D WO 3 Inverse Opal Films by “Dynamic Hard Template Infiltration Strategy”

Hua Li, Shali Li, Jacques Robichaud, Bao Lian Su, Yahia Djaoued

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

Large-area crack-free 2D and 3D WO 3 inverse opal (IO) films, using a wide range of sizes of sacrificial PS spheres as colloidal crystal template, were fabricated by “dynamic hard template infiltration strategy”. First a dynamic PS opal film was formed floating on the surface of water followed by infiltration of a preformed WO 3 sol underneath the PS opal film. The resultant PS/WO 3 opal composite film was then deposited on various types of substrates (rigid and flexible) and 2D WO 3 IO films were obtained following the removal of the PS template by chemical method. Based on this strategy, multiple layer WO 3 IOs were fabricated through a layer by layer route. The WO 3 IO films deposited on indium tin oxide coated conductive (ITO) substrates were used as active electrode in the fabrication of electrochromic devices, demonstrating their advanced properties for electrochromic application.

langue originaleAnglais
Pages (de - à)3266-3273
Nombre de pages8
journalChemistrySelect
Volume4
Numéro de publication11
Les DOIs
étatPublié - 22 mars 2019

Empreinte digitale

Infiltration
Cracks
Fabrication
Electrochromic devices
Composite films
Polymethyl Methacrylate
Substrates
Crystals
Electrodes
Water

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title = "Fabrication of Large Area Crack-Free 2D and 3D WO 3 Inverse Opal Films by “Dynamic Hard Template Infiltration Strategy”",
abstract = "Large-area crack-free 2D and 3D WO 3 inverse opal (IO) films, using a wide range of sizes of sacrificial PS spheres as colloidal crystal template, were fabricated by “dynamic hard template infiltration strategy”. First a dynamic PS opal film was formed floating on the surface of water followed by infiltration of a preformed WO 3 sol underneath the PS opal film. The resultant PS/WO 3 opal composite film was then deposited on various types of substrates (rigid and flexible) and 2D WO 3 IO films were obtained following the removal of the PS template by chemical method. Based on this strategy, multiple layer WO 3 IOs were fabricated through a layer by layer route. The WO 3 IO films deposited on indium tin oxide coated conductive (ITO) substrates were used as active electrode in the fabrication of electrochromic devices, demonstrating their advanced properties for electrochromic application.",
keywords = "dynamic hard template infiltration, inverse opal, three dimensional, two dimensional, WO",
author = "Hua Li and Shali Li and Jacques Robichaud and Su, {Bao Lian} and Yahia Djaoued",
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Fabrication of Large Area Crack-Free 2D and 3D WO 3 Inverse Opal Films by “Dynamic Hard Template Infiltration Strategy”. / Li, Hua; Li, Shali; Robichaud, Jacques; Su, Bao Lian; Djaoued, Yahia.

Dans: ChemistrySelect, Vol 4, Numéro 11, 22.03.2019, p. 3266-3273.

Résultats de recherche: Contribution à un journal/une revueArticle

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AU - Li, Hua

AU - Li, Shali

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AB - Large-area crack-free 2D and 3D WO 3 inverse opal (IO) films, using a wide range of sizes of sacrificial PS spheres as colloidal crystal template, were fabricated by “dynamic hard template infiltration strategy”. First a dynamic PS opal film was formed floating on the surface of water followed by infiltration of a preformed WO 3 sol underneath the PS opal film. The resultant PS/WO 3 opal composite film was then deposited on various types of substrates (rigid and flexible) and 2D WO 3 IO films were obtained following the removal of the PS template by chemical method. Based on this strategy, multiple layer WO 3 IOs were fabricated through a layer by layer route. The WO 3 IO films deposited on indium tin oxide coated conductive (ITO) substrates were used as active electrode in the fabrication of electrochromic devices, demonstrating their advanced properties for electrochromic application.

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