Fabricating an electrode for capacitor includes performing a first set of one or more preliminary oxide formation operations on a sheet of material. The method also includes performing a capacitance test on the sheet of material so as to determine the capacitance of the sheet of material after the one or more preliminary oxide formation operations. The method proceeds on a first path in response to a first result of the capacitance test and on a second path in response to a second result of the capacitance test. The first path includes performing a second set of the one or more preliminary oxide formation operations on the sheet of material so as to reduce the capacitance of the sheet of material below the determined capacitance. The second path excludes performing any preliminary oxide formation operations on the sheet of material.

A solid electrolytic capacitor comprising a capacitor element that contains a sintered porous anode body formed from a valve metal powder having a specific charge of about 50,000 μF*V/g or more, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric that includes a conductive polymer is provided. The capacitor exhibits a normalized aged leakage current of about 8% or less and an anomalous charging current of about 1 amp or less.

A solar cell device having a solid state light absorber region that incorporates a donor-acceptor particle structure. The particle structure includes acceptor particles that generate a flow of electrons in the solid state light absorber region in response to absorbed photons; and donor particles comprising a phosphorescent material, wherein each donor particle is coupled to a group of acceptor particles, and wherein the phosphorescent material absorbs high energy photons and emits lower energy photons that are absorbed by the acceptor particles.

The present disclosure provides a printable curved-surface perovskite solar cell, including a curved-surface conductive substrate, a porous electron transport layer, a porous insulation layer, a porous back electrode layer and a perovskite filler. The curved-surface conductive substrate includes a curved-surface transparent substrate and a conductive layer deposited on the curved-surface transparent substrate. The porous electron transport layer, the porous insulation layer and the porous back electrode layer are sequentially deposited on the conductive layer from bottom to top. The perovskite filler is filled in pores of the porous electron transport layer, the porous insulation layer and the porous back electrode layer. The present disclosure further provides a method for preparing the printable curved-surface perovskite solar cell.

A camera mounting assembly includes a base member or plate for holding a camera and a side member or plate. In an exemplary embodiment, lower slots on the base plate or side slots on the side plate are gripped by a vertical support's quick-release mechanism to mount the camera in a landscape or portrait orientation, respectively, the camera being generally centered and evenly balanced over the support in either case. The side member is detachably fastened to the base member, which modular construction permits separately timed purchase of the base member and side member as allowed by the user's budget and further permits breakdown of the assembly for ease of transport. The side member may be generally L-shaped with a lower arm length less than the side arm length, which also facilitates transport. Other components may be detachably added such as a hand grip facilitating freehand shooting with the camera.

A solid electrolytic capacitor comprising a capacitor element is provided. The capacitor element contains an anode body that includes tantalum, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric that includes a conductive polymer. The capacitor exhibits a normalized aged leakage current of about 20% or less.

Disclosed is a metal foil capacitor, preferably an aluminum capacitor, comprising a modified metal foil comprising a base metal, preferably an aluminum foil. The modified metal foil capacitor may satisfy at least two of the following conditions: (a) the modified metal foil has a surface area of at least 10 times greater than an unmodified metal foil; (b) the modified metal foil has a dielectric constant (k) of at least 5; (c) the modified metal foil has a thickness of at least 1 micron; and/or (d) the modified metal foil comprises at least one metal in addition to the base metal, wherein the at least one metal is present in an amount of at least 0.01 wt. % based on the total weight of the modified metal foil. Methods for preparing the metal foil capacitor are also disclosed.

A camera mounting assembly includes a base member or plate for holding a camera and a side member or plate. In an exemplary embodiment, lower slots on the base plate or side slots on the side plate are gripped by a vertical support's quick-release mechanism to mount the camera in a landscape or portrait orientation, respectively, the camera being generally centered and evenly balanced over the support in either case. The side member is detachably fastened to the base member, which modular construction permits separately timed purchase of the base member and side member as allowed by the user's budget and further permits breakdown of the assembly for ease of transport. The side member may be generally L-shaped with a lower arm length less than the side arm length, which also facilitates transport. Other components may be detachably added such as a hand grip facilitating freehand shooting with the camera.

A method for manufacturing an electrolytic capacitor of the present disclosure includes first to third steps. In the first step, a capacitor element is prepared that includes an anode body on which a dielectric layer is formed. In the second step, the capacitor element is impregnated with a first treatment solution containing at least a conductive polymer and a first solvent. In the third step, the capacitor element is, after the second step, impregnated with a second treatment solution that contains a polyol compound having 3 or more hydroxyl groups per molecule.

A film-forming device disclosed is a film-forming device for forming a film on a metal foil having a porous portion on a main surface thereof by a gas phase method, and includes a film-forming region in which the film is formed on the metal foil, conveyors to provided downstream of the film-forming region and drawing the metal foil from the film-forming region, and a control unit that controls the stress applied to the metal foil from the conveyors to 21 N/mm.sup.2 or less. This provides a film-forming device which does not cause defects easily on a film-forming target metal foil.