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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2406.02181 |
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| _version_ | 1866910471921074176 |
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| author | Lobet, Michaël Gillissen, Florian DeMoor, Nicolas Dewalque, Jennifer Colson, Pierre Cloots, Rudi Maho, Anthony Henrard, Luc |
| author_facet | Lobet, Michaël Gillissen, Florian DeMoor, Nicolas Dewalque, Jennifer Colson, Pierre Cloots, Rudi Maho, Anthony Henrard, Luc |
| contents | Materials with broadband tunable optical properties are looked for in smart windows applications. Doped metal oxides presenting dual band visible (VIS) near infrared (NIR) electrochromic properties can be used for solving such a challenge, and their accurate optical characterization is therefore of prime importance. Kubelka Munk model is a state of the art way to optically quantify the absorption properties of materials and is occasionally applied to plasmonic materials, even if great care should be taken to meet the formalism hypotheses. In the present work, Kubelka Munk theory is discussed in the context of particles of indium tin oxide and molybdenum tungsten oxide formulations that are used as single NIR and both VIS and NIR active advanced electrochromic materials, respectively. An analytical model is derived for particles of much smaller dimensions than the incident wavelength and is experimentally verified. A dilution method is applied to verify the plasmonic characteristics of the particles. This study is key for efficient characterization of optical properties of metal oxides, and plasmonic materials in general, from diffuse reflectance measurements. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_02181 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Plasmonic properties of electrochromic doped metal oxides investigated through Kubelka Munk formalism Lobet, Michaël Gillissen, Florian DeMoor, Nicolas Dewalque, Jennifer Colson, Pierre Cloots, Rudi Maho, Anthony Henrard, Luc Optics Materials Science Materials with broadband tunable optical properties are looked for in smart windows applications. Doped metal oxides presenting dual band visible (VIS) near infrared (NIR) electrochromic properties can be used for solving such a challenge, and their accurate optical characterization is therefore of prime importance. Kubelka Munk model is a state of the art way to optically quantify the absorption properties of materials and is occasionally applied to plasmonic materials, even if great care should be taken to meet the formalism hypotheses. In the present work, Kubelka Munk theory is discussed in the context of particles of indium tin oxide and molybdenum tungsten oxide formulations that are used as single NIR and both VIS and NIR active advanced electrochromic materials, respectively. An analytical model is derived for particles of much smaller dimensions than the incident wavelength and is experimentally verified. A dilution method is applied to verify the plasmonic characteristics of the particles. This study is key for efficient characterization of optical properties of metal oxides, and plasmonic materials in general, from diffuse reflectance measurements. |
| title | Plasmonic properties of electrochromic doped metal oxides investigated through Kubelka Munk formalism |
| topic | Optics Materials Science |
| url | https://arxiv.org/abs/2406.02181 |