Thermochromic Printable and Multicolor Polymeric Composite Based on Hybrid Organic–Inorganic Perovskite

Abstract: Hybrid organic–inorganic perovskites (PVKs) are among the most promising materials for optoelectronic applications thanks to their outstanding photophysical properties and easy synthesis. Herein, a new PVK‐based thermochromic composite is demonstrated. It can reversibly switch from a transparent state (transmittance > 80%) at room temperature to a colored state (transmittance < 10%) at high temperature, with very fast kinetics, taking only a few seconds to go from the bleached to the colored state (and vice versa). X‐ray diffraction, Fourier‐transform infrared spectroscopy, differential scanning calometry, rheological, and optical measurements carried out during heating/cooling cycles reveal that thermochromism in the material is based on a reversible process of PVK disassembly/assembly mediated by intercalating polymeric chains, through the formation and breaking of hydrogen bonds between polymer and perovskite. Therefore, differently from other thermochromic perovskites, that generally work with the adsorption/desorption of volatile molecules, the system is able to perform several heating/cooling cycles regardless of environmental conditions. The color and transition temperature (from 70 to 120 °C) can be tuned depending on the type of perovskite. Moreover, this thermochromic material is printable and can be deposited by cheap techniques, paving the way for a new class of smart coatings with an unprecedented range of colors.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Thermochromic Printable and Multicolor Polymeric Composite Based on Hybrid Organic–Inorganic Perovskite ; day:27 ; month:11 ; year:2023 ; extent:11 ; Advanced materials ; (27.11.2023) (gesamt 11)

Beteiligte, Orts- und Zeitangaben

• Urheber: Cinquino, Marco ; Prontera, Carmela Tania ; Giuri, Antonella ; Pugliese, Marco ; Giannuzzi, Roberto ; Maggiore, Antonio ; Altamura, Davide ; Mariano, Fabrizio ; Gigli, Giuseppe ; Esposito Corcione, Carola ; Giannini, Cinzia ; Rizzo, Aurora ; De Marco, Luisa ; Maiorano, Vincenzo

Weitere Informationen

• DOI: 10.1002/adma.202307564
• URN: urn:nbn:de:101:1-2023112814023147023001
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 15.08.2025, 07:24 MESZ