Precursor and related method of forming for use in forming elect

Details Precursor and related method of forming for use in forming elect Precursor and related method of forming for use in forming elect

1993-09-02

1995-10-10

Nazario-Gonzales, Porfirio

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 49, 556 57, 556 61, 556136, 556146, C07F 900, C07F 1300, C07F 1100

Patent

active

054572185

ABSTRACT:
Electrochromic coating solutions are prepared by reacting a transition metal with a mixture of hydrogen peroxide and an organic acid. The resulting transition metal-peroxy acid product is esterified by reacting with lower carbon alcohols to produce a peroxyester-transition metal derivative. This derivative in solution in lower carbon alcohols provides a working solution into which a substrate having a conductive surface is preferable dipped and removed at a rate sufficient to give a coating of a desired thickness over the conductive surface. Spray or spin coating can be used to apply the coating to the conductive surface of the substrate. The coating is then dried and is externally fired in an oven to complete the necessary reactions to yield an electrochromic oxide coating having exceptional electrochromic properties.

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patent: 5034246 (1991-07-01), Mance et al.
Kazusuke Yamanaka et al., "Peroxotungstic Acid Coated Films for Electrochromic Display Devices," Jap. J. App. Phys., vol. 25, No. 9 (1986), pp. 1420-1426.
A. Gupta et al., "Superconducting Oxide Films With High Transition Temperature Prepared From Metal Trifluoroacetate Precursors," Appl. Phys. Lett., vol. 52, No. 24 (1988), pp. 2077-2079.
"Dissolution of Tungsten by Hydrogen Peroxide," Analytical Chemistry, vol. 33, Jul.-Dec. 1961, pp. 1125-1126.

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