Investigation of LSPR Coupling Effects toward the Rational Design of CsxWO3–δ Based Solar NIR Filtering Coatings

• DOI: 10.1002/adfm.202212845
• Publication Date: 2023-06-28T06:49:48Z
• Authors: Louise Daugas; Khalid Lahlil; Capucine Cleret d...; Ileana Florea; Eric Larquet; Hervé Henry; Jongwook Kim; Thierry Gacoin
• Keywords: [CHIM]Chemical Sciences; 600

Abstract The optical range of localized surface plasmon resonance (LSPR) is extended into the infrared region, thanks to development highly doped semiconductor nanocrystals. Particularly, near‐infrared (NIR) holds a significant interest in managing solar radiation. However, practical applications necessitate arrangement particles, which known possibly impact their properties through LSPR coupling effects. How such modifies response hosts remains largely unexplored. In this study, protocol for producing composite coatings composed cesium‐doped tungsten bronze nanocrystals embedded silica matrix presented. Achieving individual dispersion made possible careful selection polyglycerol ligand exchange. This allows tune interparticle distance by adjusting nanocrystal volume fraction composite. findings demonstrate that effects significantly influence intensity when nanocrystal‐to‐nanocrystal matches size. Beyond elucidating effect, study provides insights potential use Cs‐HTB control applications. Through optimization morphology and film structure, remarkable selectivity obtained terms maintaining good transparency visible while achieving high absorption NIR.