Electropolymerization of enhanced electrochromic (EC) polymer film
First Claim
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1. A counter-electrode useful in an electrochromic device including a cathodic polymer layer comprising:
- (a) a substantially transparent and substantially non-conductive substrate; and
(b) a generally non-transparent conductive material deposited onto the substrate in a generally concentric web-shaped pattern, such that less than an entire upper surface of the substrate is coated with the conductive material, and the generally concentric web-shaped pattern does not reduce a transmittance of the transparent non-conductive substrate by substantially more than about 25 percent, the generally concentric web-shaped pattern comprising a plurality of concentric elements radiating from a central point, and a plurality of spoke-like elements radiating from the central point.
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Abstract
Devices including EC monomers polymerized using chronoamperometry to deposit a very thin homogeneous layer followed by cyclic voltammetry to increase the density of the EC polymer film. Another aspect of the present invention is directed to specific web like configurations for a grid of conductive material deposited onto a transparent substrate. The web like configuration is based either on concentric circles, or on concentric ellipses. Yet another aspect of the present invention is directed to an imaging system including a digital window that is disposed between a prism and a patterned analytic layer.
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Citations
16 Claims
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1. A counter-electrode useful in an electrochromic device including a cathodic polymer layer comprising:
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(a) a substantially transparent and substantially non-conductive substrate; and (b) a generally non-transparent conductive material deposited onto the substrate in a generally concentric web-shaped pattern, such that less than an entire upper surface of the substrate is coated with the conductive material, and the generally concentric web-shaped pattern does not reduce a transmittance of the transparent non-conductive substrate by substantially more than about 25 percent, the generally concentric web-shaped pattern comprising a plurality of concentric elements radiating from a central point, and a plurality of spoke-like elements radiating from the central point. - View Dependent Claims (2, 3)
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4. A laminated electrochromic device comprising:
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(a) a transparent electrode layer; (b) a cathodic polymer layer comprising a relatively thin base layer generated using chronoamperometry, and a relatively thicker upper layer generated using cyclic voltammetry; (c) an electrolyte layer comprising a solid electrolyte; and (d) a counter electrode layer. - View Dependent Claims (5, 6, 7, 8)
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9. A surface plasmon resonance imaging system, comprising:
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(a) a flow cell; (b) a patterned analytic layer; (c) a light source directing light to the analytic layer along a first path; (d) a first optical element in the first path that polarizes the light; (e) a prism disposed in the first light path between the first optical element and the analytic layer, such that light traveling along the first path passes through the prism; (f) a digital window disposed between the prism and the analytic layer configured for selectively controlling whether light from the light source traveling along the first path reaches the analytic layer, without affecting the transmission of light from the light source through the prism, the digital window including a plurality of individually addressable pixels arranged in a grid format, each pixel being switchable between a transparent state and a non-transparent state by applying a voltage thereto, each pixel comprising a laminated electrochromic structure having a cathodic electrochromic polymer layer; (g) a plurality of electrical conductors coupled to each pixel, such that a voltage can be individually selectively applied to each pixel; (h) a power supply electrically coupled to said electrical conductors and said light source; (i) a second optical element disposed along a second path, said second optical element focusing light traveling from said analytic layer and passing the light that is focused through said prism; and (j) a detector disposed in the second path, said detector receiving light focused by the second optical element. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification