Tungsten oxide (WO3) is one of the most promising materials for electrochromic devices. WO3 thin films have been prepared at low temperature by using a polyethylene glycol (PEG) assisted sol–gel method. The structure and the stoichiometry of films deposited by dip coating on glass substrates have been studied as a function of thermal annealing by XRD, FTIR and l-Raman. PEGcontaining samples show improved electrochromic efficiency due to the formation of sub-stoichiometric, nanocrystalline phases. The electrochromic performance of WO3 films gets worse for annealing temperatures higher than 300C due to massive Na absorption from the substrate.

WO3 thin films by sol-gel for electrochromic applications / Cremonesi, A.; Bersani, Danilo; Lottici, Pier Paolo; Djaoued, Y.; Ashrit, P. V.. - In: JOURNAL OF NON-CRYSTALLINE SOLIDS. - ISSN 0022-3093. - 345-346:(2004), pp. 500-504. [10.1016/j.jnoncrysol.2004.08.073]

WO3 thin films by sol-gel for electrochromic applications

BERSANI, Danilo;LOTTICI, Pier Paolo;
2004-01-01

Abstract

Tungsten oxide (WO3) is one of the most promising materials for electrochromic devices. WO3 thin films have been prepared at low temperature by using a polyethylene glycol (PEG) assisted sol–gel method. The structure and the stoichiometry of films deposited by dip coating on glass substrates have been studied as a function of thermal annealing by XRD, FTIR and l-Raman. PEGcontaining samples show improved electrochromic efficiency due to the formation of sub-stoichiometric, nanocrystalline phases. The electrochromic performance of WO3 films gets worse for annealing temperatures higher than 300C due to massive Na absorption from the substrate.
2004
WO3 thin films by sol-gel for electrochromic applications / Cremonesi, A.; Bersani, Danilo; Lottici, Pier Paolo; Djaoued, Y.; Ashrit, P. V.. - In: JOURNAL OF NON-CRYSTALLINE SOLIDS. - ISSN 0022-3093. - 345-346:(2004), pp. 500-504. [10.1016/j.jnoncrysol.2004.08.073]
File in questo prodotto:
File Dimensione Formato  
WO3 thin films by sol-gel for electrochromic applications.pdf

non disponibili

Tipologia: Documento in Post-print
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 340.89 kB
Formato Adobe PDF
340.89 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
(WO3 thin films by sol–gel for electrochromic applications%2).pdf

non disponibili

Tipologia: Abstract
Licenza: Creative commons
Dimensione 66.18 kB
Formato Adobe PDF
66.18 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2298615
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 61
  • ???jsp.display-item.citation.isi??? 57
social impact