Abstract: Provided is an electroconductive film including a base material film provided with a light transmissive base material (20), and one or more functional layers laminated on a single or both sides of the light transmissive base material; a transparent electroconductive layer, which is provided on the functional layer, and patterned; and a lead-out electrode electrically connected with the transparent electroconductive layer; wherein when the base material film is irradiated with light from a surface side of the functional layer while an incidence angle is varied every five degrees in a range of 5° or more and 75° or less to determine a* and b* values of the base material film in a L*a*b* color system from reflected light toward each regular reflection direction, a variation of the a* values is 1.0 or less, and a variation of the b* values is 3.0 or less.

Abstract: There is provided an intermediate base material film including: a transparent base material; a transparent layer having a refractive index of from 1.47 to 1.57 and a film thickness of 1 ?m or more; a high-refractive-index layer having a refractive index of from 1.62 to 1.72 and a film thickness of from 20 nm to 80 nm; and a low-refractive-index layer having a refractive index of from 1.44 to 1.54 and a film thickness from of 3 nm to 45 nm, wherein when the intermediate base material film is irradiated with light to determine a* and b* values in a L*a*b* color system from reflected light toward each regular reflection direction, a variation of the a* values is 1.0 or less, and a variation of the b* values is 1.6 or less.

Abstract: Provided is an electroconductive film including a base material film provided with a light transmissive base material (20), and one or more functional layers laminated on a single or both sides of the light transmissive base material; a transparent electroconductive layer, which is provided on the functional layer, and patterned; and a lead-out electrode electrically connected with the transparent electroconductive layer; wherein when the base material film is irradiated with light from a surface side of the functional layer while an incidence angle is varied every five degrees in a range of 5° or more and 75° or less to determine a* and b* values of the base material film in a L*a*b* color system from reflected light toward each regular reflection direction, a variation of the a* values is 1.0 or less, and a variation of the b* values is 3.0 or less.

Abstract: There is provided an intermediate base material film including: a transparent base material; a transparent layer having a refractive index of from 1.47 to 1.57 and a film thickness of 1 ?m or more; a high-refractive-index layer having a refractive index of from 1.62 to 1.72 and a film thickness of from 20 nm to 80 nm; and a low-refractive-index layer having a refractive index of from 1.44 to 1.54 and a film thickness from of 3 nm to 45 nm, wherein when the intermediate base material film is irradiated with light to determine a* and b* values in a L*a*b color system from reflected light toward each regular reflection direction, a variation of the a* values is 1.0 or less, and a variation of the b* values is 1.6 or less.

Abstract: There is provided an intermediate base material film including: a transparent base material; a transparent layer having a refractive index of from 1.47 to 1.57 and a film thickness of 1 ?m or more; a high-refractive-index layer having a refractive index of from 1.62 to 1.72 and a film thickness of from 20 nm to 80 nm; and a low-refractive-index layer having a refractive index of from 1.44 to 1.54 and a film thickness from of 3 nm to 45 nm, wherein when the intermediate base material film is irradiated with light to determine a* and b* values in a L*a*b* color system from reflected light toward each regular reflection direction, a variation of the a* values is 1.0 or less, and a variation of the b* values is 1.6 or less.

Abstract: Disclosed herein is a dye-sensitized solar cell that prevents reverse electron transfer by a simple method and has significantly-improved power generation efficiency. The dye-sensitized solar cell includes a base material for dye-sensitized solar cell having a base material and a first electrode layer provided on the base material; a counter electrode base material arranged so as to oppose to the base material for dye-sensitized solar cell and functions as an electrode; an electrolyte layer provided between the base material for dye-sensitized solar cell and the counter electrode base material; and a porous layer laminated on either the base material for dye-sensitized solar cell or the counter electrode base material, provided so as to come into contact with the electrolyte layer, and contains a dye-sensitizer-supported fine particle of a metal oxide semiconductor.