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Giannuzzi R, De Donato F, De Trizio L, Monteduro AG, Maruccio G, Scarfiello R, Qualtieri A, Manna L. Tunable Near-Infrared Localized Surface Plasmon Resonance of F, In-Codoped CdO Nanocrystals. ACS Appl Mater Interfaces 2019; 11:39921-39929. [PMID: 31577409 DOI: 10.1021/acsami.9b12890] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanocrystals (NCs) of transparent conducting oxides with a localized surface plasmon resonance (LSPR) in the near-infrared (NIR) spectral region show promising electrochromic properties for the development of a new generation of dynamic "smart windows". In this regard, we exploit thin films of F, In-codoped CdO (FICO) NCs as active coatings for electrochromic devices. The control over the dopants concentration in FICO NCs results in fine tuning of their LSPR across the NIR region of the electromagnetic spectrum. Highly transparent mesoporous electrodes were prepared from colloidal FICO NCs by in situ ligand exchange of the pristine organic capping ligands. This approach preserves the optical and electrical properties of native NCs and delivers highly homogeneous, nonscattering films with a good electronic coupling between the NCs. We achieved a dynamic control over the LSPR frequency by reversible electrochemical doping, hence a spectrally selective modulation of the optical transmittance in the NIR region of the solar spectrum, which carries nearly 50% of the whole solar heat. Spectroelectrochemical characterization, coloration efficiency, and switching kinetics results indicate that thin film based on FICO NCs are potential candidates for plasmonic electrochromic applications. Moreover, the high electron mobility and wide optical bandgap of FICO makes NCs of this material suitable for large-area devices capable of dynamically controlling the heat load coming from the solar infrared radiation, without affecting the visible light transmittance.
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Affiliation(s)
- Roberto Giannuzzi
- IIT-CBN-Fondazione Istituto Italiano di Tecnologia-Center for Biomolecular Nanotechnologies , via Barsanti 14 , 73010 Arnesano , Lecce , Italy
| | - Francesco De Donato
- IIT-NCH-Fondazione Istituto Italiano di Tecnologia-Nanochemistry Department , via Morego 30 , 16163 Genova , Italy
| | - Luca De Trizio
- IIT-NCH-Fondazione Istituto Italiano di Tecnologia-Nanochemistry Department , via Morego 30 , 16163 Genova , Italy
| | - Anna Grazia Monteduro
- Department of Mathematics and Physics , University of Salento , via Monteroni , 73100 Lecce , Italy
- CNR-NANOTEC-Institute of Nanotechnology , c/o Campus Ecotekne, via Monteroni , 73100 Lecce , Italy
| | - Giuseppe Maruccio
- Department of Mathematics and Physics , University of Salento , via Monteroni , 73100 Lecce , Italy
- CNR-NANOTEC-Institute of Nanotechnology , c/o Campus Ecotekne, via Monteroni , 73100 Lecce , Italy
| | - Riccardo Scarfiello
- CNR-NANOTEC-Institute of Nanotechnology , c/o Campus Ecotekne, via Monteroni , 73100 Lecce , Italy
| | - Antonio Qualtieri
- IIT-CBN-Fondazione Istituto Italiano di Tecnologia-Center for Biomolecular Nanotechnologies , via Barsanti 14 , 73010 Arnesano , Lecce , Italy
| | - Liberato Manna
- IIT-NCH-Fondazione Istituto Italiano di Tecnologia-Nanochemistry Department , via Morego 30 , 16163 Genova , Italy
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