Abstract: Provided is a heat ray reflective material including, on a support in the following order from the support side: a conductive particle-containing layer that includes fibrous conductive particles having an average length of 5 ?m to 20 ?m, and a binder, in which an expansion factor of a thickness before and after the passage of time in a case where 24 hours have elapsed under environmental conditions of a temperature of 63° C. and relative humidity of 50%, is 2.2% or less; and a protective layer that includes a metal oxide derived from a metal alkoxide. Provided is a heat ray reflective material including, on a support in the following order from the support side: a conductive particle-containing layer that includes the fibrous conductive particles, and a binder having a water absorption rate of 10% or less; and the protective layer.

Abstract: An object of the present invention is to provide an optical film in which impact resistance and slipperiness of the film are excellent, and the occurrence of rainbow-like unevenness is suppressed. The present invention relates to an optical film containing a cyclic olefin-based resin and an elastomer, in which a content ratio of the elastomer is 5 mass % to 40 mass % with respect to the total mass of the optical film, and retardation Rth in a thickness direction in terms of a thickness of 40 ?m is 6 nm to 90 nm. The present invention further relates to a transparent conductive film, a touch panel, a surface protection film, and a display device.

Abstract: A film mirror for solar radiation collection includes at least a protective layer, a silver reflective layer and a resin substrate in this order from a light incident side and has a corrosion inhibitor present at either or both of a surface and a surface layer of the silver reflective layer on the protective layer side, with the content of the corrosion inhibitor being 0.1 to 10 mg/m2. The film mirror for solar radiation collection is excellent in adhesion of the protective layer and in lightfastness as well.

Abstract: There is provided a film mirror having excellent weather resistance and flexibility. The film mirror includes a resin substrate, and a metal reflective layer, a diffusion preventive layer, and a surface protection layer laminated on the resin substrate in this sequence, in which the diffusion preventive layer has a layer obtained by performing either or both of heating process and light irradiation process on a precursor layer that is formed by using either or both of a metal alkoxide, which has an acryloyloxy group or a methacryloyloxy group, and a hydrolysis condensate of the metal alkoxide.

Abstract: A solar cell, comprising: a metal substrate having an insulating anodic oxidation film; and a photoelectric conversion layer provided on the metal substrate, whereon the anodic oxidation film has a surface roughness of 0.5 nm to 2 ?m and the photoelectric conversion layer comprises a chalcopyrite semiconductor material having a band gap of 1.3 eV to 1.5 eV.

Abstract: A substrate for a solar cell, containing a metal substrate and an insulating anodic oxidation film provided on the metal substrate, wherein the thickness TO of the anodic oxidation film and the thickness TB of a barrier layer of the anodic oxidation film are inside a region I surrounded by the point A (TO=0.01 ?m, TB=0.01 ?m), the point B (TO=2 ?m, TB=2 ?m), the point C (TO=100 ?m, TB=2 ?m) and the point D (TO=100 ?M, TB=0.01 ?m) shown in FIG. 1 (provided that the region includes its boundary lines); and a solar cell using the same.

Abstract: A substrate for a solar cell, containing a metal substrate and an anodic oxidation film provided on the metal substrate, wherein on a surface of the anodic oxidation film, pores in a diameter of 10 nm to 600 nm are formed; and a solar cell using the same.

Abstract: A substrate for a solar cell having a metal substrate, a first insulating oxide film formed on the metal substrate by anodic oxidation, and a second insulating film, wherein the first insulating oxide film has pores and the pores are sealed with the second insulating film at a sealing ratio of 5 to 80%.