Silver nanowire-based transparent electrodes for V2O5 thin films with electrochromic properties
KHAN, Ambreen
Laboratoire des matériaux et du génie physique [LMGP ]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
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Laboratoire des matériaux et du génie physique [LMGP ]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
KHAN, Ambreen
Laboratoire des matériaux et du génie physique [LMGP ]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire des matériaux et du génie physique [LMGP ]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
NAYAK, Suraj
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire des matériaux et du génie physique [LMGP ]
< Réduire
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire des matériaux et du génie physique [LMGP ]
Langue
en
Article de revue
Ce document a été publié dans
ACS Applied Materials & Interfaces. 2024, vol. 16, n° 8, p. 10439-10449
Washington, D.C. : American Chemical Society
Résumé en anglais
The development of electrochromic systems, known for the modulation of their optical properties under an applied voltage, depends on the replacement of the state-of-the-art ITO (In2O3:Sn) transparent electrode (TE) as well ...Lire la suite >
The development of electrochromic systems, known for the modulation of their optical properties under an applied voltage, depends on the replacement of the state-of-the-art ITO (In2O3:Sn) transparent electrode (TE) as well as the improvement of electrochromic films. This study presents an innovative ITO-free electrochromic film architecture utilizing oxide-coated silver nanowire (AgNW) networks as a TE and V2O5 as an electrochromic oxide layer. The TE was prepared by simple spray deposition of AgNWs that allowed for tuning different densities of the network and hence the resistance and transparency of the film. The conformal oxide coating (SnO2 or ZnO) on AgNWs was deposited by atmospheric-pressure spatial atomic layer deposition, an open-air fast and scalable process yielding a highly stable electrode. V2O5 thin films were then deposited by radio frequency magnetron sputtering on the AgNW-based TE. Independent of the oxide’s nature, a 20 nm protective layer thickness was insufficient to prevent the deterioration of the AgNW network during V2O5 deposition. On the contrary, crystalline V2O5 films were grown on 30 nm thick ZnO or SnO2-coated AgNWs, exhibiting a typical orange color. Electrochromic characterization demonstrated that only V2O5 films deposited on 30 nm thick SnO2-coated AgNW showed characteristic oxidation–reduction peaks in the Li+-based liquid electrolyte associated with a reversible orange-to-blue color switch for at least 500 cycles. The electrochromic key properties of AgNW/SnO2 (30 nm)/V2O5 films are discussed in terms of structural and morphological changes due to the AgNW network and the nature and thickness of the two protective oxide coatings.< Réduire
Mots clés en anglais
Metallic nanowires
Conformal oxide coating
Interfaces
Stability
Electrochromic oxide
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