Abstract: An electronic device includes a substrate, a structure having openings, and a first electrode overlying the structure and lying within the openings. From a cross-sectional view, the structure, at the openings, has a negative slope. From a plan view, each opening has a perimeter that may or may not substantially correspond to a perimeter of an organic electronic component. The portions of the first electrode overlying the structure and lying within the openings are connected to each other. In a process for forming the electronic device, an organic active layer may be deposited within the opening, wherein the organic active layer has a liquid composition.

Abstract: Compositions are provided comprising aqueous dispersions of polythiophenes having homopolymers or co-polymers of Formula I(a) or Formula I(b) and at least one colloid-forming polymeric acid. Methods of making such compositions and using them in organic electronic devices are further provided.

Abstract: An electrochromic variable optical attenuator having low insertion loss, and which is substantially insensitive to the polarization of optical signals transmitted therethrough, is disclosed. The attenuator includes an annular working electrode, and a counter electrode surrounding and spaced from the annular working electrode in a coplanar configuration. Also included is an electrochromic layer in peripheral contact with the annular working electrode; and a further electrochromic layer overlying the counter electrode. An electrolyte overlies and is in contact with the two electrochromic layers; so that upon application of an electrical voltage between the electrodes, the optical density of the electrochromic layer is altered, thereby varying the attenuation of incident optical signals transmitted therethrough.