Oxide bronze materials

Details Oxide bronze materials Oxide bronze materials

1986-09-02

1989-04-25

LaRoche, Eugene R.

G02F 101

Patent

active

048242225

ABSTRACT:
An oxide bronze host material is a solid solution of a first oxide component comprising molybdenum oxide (MoO.sub.3), tungsten oxide (WO.sub.3), zirconium oxide (ZrO), niobium oxide (Nb.sub.2 O.sub.5) or any two or more thereof and a second oxide component comprising vanadium oxide (V.sub.2 O.sub.5) and/or titanium oxide (TiO.sub.2), the formula ratio of the first and second oxide components being selected such that the host material is capable of accepting guest atoms when incorporated in an electrochemical cell, said guest atoms altering the spectral characteristics of the host material without producing substantial visible color change in thin layers of the host material. Such a material may be used as a thin layer (12) in an electrochemical variable optical density window further including electrode layers (11, 15) on glass supports (10, 16) and an electrochromic oxide bronze layer (14) spaced from the layer (12) by an electrolyte layer (13a, 13b).

REFERENCES:
patent: 4231641 (1980-11-01), Randin
patent: 4652090 (1987-03-01), Uchikawa
patent: 4660939 (1987-04-01), Tsuchiya

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