Precursor solutions for forming coatings

A precursor solution for forming a precursor coating which can be converted to an electrochromic coating on a substrate, said solution comprising:

• a carrier solvent, which is removable from said solution at a first temperature;
• an electrochromic precursor, which can be converted to an electrochromic material at a second temperature, wherein said electrochromic precursor is selected to form a metallic oxide selected from the group consisting of tungsten oxide, molybdenum oxide, manganese oxide, chromium oxide, rhenium oxide, iridium oxide, nickel oxide and mixtures thereof and said electrochromic precursor is a peroxyester-transition metal derivative;
• and
• a removable organic moiety, wherein (i) said organic moiety has a decomposition temperature sufficiently greater than said first temperature such that said organic moiety remains integral with said precursor coating when said carrier solvent is removed, and (ii) said organic moiety has a decomposition temperature or boiling point less than or equal to said second temperature such that removal of said organic moiety occurs prior to or concurrently with the formation of said electrochromic coating.

A precursor solution for forming a precursor coating which can be converted to an electrochromic coating on a substrate, said solution comprising:

• a carrier solvent, which is removable from said solution at a first temperature;
• an electrochromic precursor, which can be converted to an electrochromic material at a second temperature;
• and
• a removable organic moiety, wherein (i) said organic moiety has a decomposition temperature sufficiently greater than said first temperature such that said organic moiety remains integral with said precursor coating when said carrier solvent is removed, (ii) said organic moiety has a decomposition temperature or boiling point less than or equal to said second temperature such that removal of said organic moiety occurs prior to or concurrently with the formation of said electrochromic coating and (iii) said organic moiety is solid and has a melting point of at least 50.degree. C.

A precursor solution for forming a precursor coating which can be converted to an electrochromic coating on a substrate, said solution comprising:

• a carrier solvent, which is removable from said solution at a first temperature;
• an electrochromic precursor, which can be converted to an electrochromic material at a second temperature;
• and
• a removable organic moiety, wherein (i) said organic moiety has a decomposition temperature sufficiently greater than said first temperature such that said organic moiety remains integral with said precursor coating when said carrier solvent is removed, (ii) said organic moiety has a decomposition temperature or boiling point less than or equal to said second temperature such that removal of said organic moiety occurs prior to or concurrently with the formation of said electrochromic coating and (iii) said organic moiety is solid and has a melting point of at least 100.degree. C.

A precursor solution for forming a precursor coating which can be converted to an electrochromic coating on a substrate, said solution comprising:

• a carrier solvent, which is removable from said solution at a first temperature;
• an electrochromic precursor, which can be converted to an electrochromic material at a second temperature;
• and
• a removable organic moiety, wherein (i) said organic moiety has a decomposition temperature sufficiently greater than said first temperature such that said organic moiety remains integral with said precursor coating when said carrier solvent is removed, (ii) said organic moiety has a decomposition temperature or boiling point less than or equal to said second temperature such that removal of said organic moiety occurs prior to or concurrently with the formation of said electrochromic coating and (iii) said organic moiety is non-solid and has a boiling point at 760 torr of at least 120.degree. C.