Electrochromic Li sub x WO sub 3 /polymer laminate/Li sub y V sub 2 O sub 5 device: toward an all-solid-state smart window

Journal Article · Tue Aug 15 00:00:00 EDT 1989 · Applied Optics; (USA)

DOI:https://doi.org/10.1364/AO.28.003295· OSTI ID:5527767

Andersson, A M; Granqvist, C G ^[1]; Stevens, J ^[2]

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1. Chalmers University of Technology, Physics Department, S-412 96, Gothenburg, Sweden (SE)
2. University of Guelph, Physics Physics Department, Guelph, Ontario N1G 2W1, Canada

We introduce a laminate two-layer approach to electrochromic smart windows. It incorporates two glass panes, each having a two-layer coating, laminated by a transparent adhesive solid polymer electrolyte. Each coating has a transparent conducting base layer (In{sub 2}O{sub 3}:Sn) and a top layer of an ion-insertion compound (based on WO{sub 3} or V{sub 2}O{sub 5}). The layers were made by evaporation or sputtering. Cyclic voltammetry in liquid electrolytes and spectrophotometry were used to characterize the layers. A novel electrolyte was developed: it comprised a methyl methacrylate network incorporating poly(propylene glycol) complexed with lithium perchlorate. Initial optical data are reported for laminated devices having an active electrochromic Li{sub {ital x}}WO{sub 3} layer and a passive Li{sub {ital y}}V{sub 2}O{sub 5} counter electrode.

• OSTI ID: 5527767
• Journal Information: Applied Optics; (USA), Journal Name: Applied Optics; (USA) Vol. 28:16; ISSN 0003-6935; ISSN APOPA
• Country of Publication: United States
• Language: English

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