Electrochromic device
First Claim
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1. An electrochromic device comprising two conductive substrates, at least one of which is transparent, an ion conductive layer disposed therebetween and an electrochromic color developing layer disposed between the ion conductive layer and at least either one of the two conductive substrates and containing (A) a compound having a viologen structure represented by the formula wherein X−
- and Y−
are the same or different and are each a counter anion selected from the group consisting of a halogen anion, ClO4−
, BF4−
, PF6−
, CH3COO−
and CH3(C6H4)SO3−
and (B) 4,4′
-dipyridyl and/or a 1-substituted 4,4′
-dipyridinium salt represented by the formula wherein X−
is a counter anion selected from the group consisting of a halogen anion, ClO4−
, BF4−
, PF6−
, CH3COO−
and CH3(C6H4)SO3−
; and
wherein the compound having a viologen structure represented by formula (1) is selected from the group consisting of a high molecular weight compound having a viologen structure unit or a unit containing a viologen structure as a repeating unit, a high molecular weight compound having a high molecular weight substitute at the end of a viologen structure, and a high molecular weight compound substituted in part with a group having a viologen structure.
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Abstract
An electrochromic mirror comprising two conductive substrates, at least one of which is transparent, and both of an ion conductor layer and an electrochromic color-developing layer sandwiched between the substrates, wherein the color-developing layer contains a high-molecular compound having a biologen structure.
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Citations
10 Claims
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1. An electrochromic device comprising two conductive substrates, at least one of which is transparent, an ion conductive layer disposed therebetween and an electrochromic color developing layer disposed between the ion conductive layer and at least either one of the two conductive substrates and containing (A) a compound having a viologen structure represented by the formula
wherein X− - and Y−
are the same or different and are each a counter anion selected from the group consisting of a halogen anion, ClO4−
, BF4−
, PF6−
, CH3COO−
and CH3(C6H4)SO3−
and (B) 4,4′
-dipyridyl and/or a 1-substituted 4,4′
-dipyridinium salt represented by the formulawherein X−
is a counter anion selected from the group consisting of a halogen anion, ClO4−
, BF4−
, PF6−
, CH3COO−
and CH3(C6H4)SO3−
; andwherein the compound having a viologen structure represented by formula (1) is selected from the group consisting of a high molecular weight compound having a viologen structure unit or a unit containing a viologen structure as a repeating unit, a high molecular weight compound having a high molecular weight substitute at the end of a viologen structure, and a high molecular weight compound substituted in part with a group having a viologen structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- and Y−
Specification