Abstract: A luminescent composition comprising a luminescent organic compound and a conjugated polymer compound having a luminescence maximum further toward the short wavelength end than the luminescence maximum of the luminescent organic compound at 350 nm to 500 nm, and satisfying the following formula (1); f(g,h)×w?0.04??(1) in the formula, f(g, h) represents the convolution integral of the emission spectrum of the conjugated polymer compound and the gram absorption coefficient spectrum of the luminescent organic compound (L/g·cm) in the range of 200 nm to 800 nm, in 1 nm steps, and w represents the content of the luminescent organic compound where the total content of the luminescent organic compound and conjugated polymer compound in the luminescent composition is defined as 1 part by mass.

Abstract: A polymer compound comprising a repeating unit represented by the formula (1): wherein, E1, E2, E3 and E4 represent each independently an aryl group, a mono-valent heterocyclic group or the like, a, b, c, d and e represent each independently 1 or 2, and f represents an integer of 0 to 3, and when f=0, then, 5?a+b+c+e?8 and at least one of b and c is 2, and when there are a plurality of d, these may be the same or different, m, n, o, p, q and l represent each independently an integer of 0 to 4, and when there are a plurality of m, n, o, p and q, these may be the same or different, respectively, j and k represent each independently an integer of 0 to 5.

Abstract: A luminescent composition comprising a luminescent organic compound and a conjugated polymer compound having a luminescence maximum further toward the short wavelength end than the luminescence maximum of the luminescent organic compound at 350 nm to 500 nm, and satisfying the following formula (1); f(g,h)×w?0.04??(1) in the formula, f(g, h) represents the convolution integral of the emission spectrum of the conjugated polymer compound and the gram absorption coefficient spectrum of the luminescent organic compound (L/g·cm) in the range of 200 nm to 800 nm, in 1 nm steps, and w represents the content of the luminescent organic compound where the total content of the luminescent organic compound and conjugated polymer compound in the luminescent composition is defined as 1 part by mass.

Abstract: A polymer having a repeating unit represented by the following general formula (I) and a ferrocene-based reduction potential of ?1.5 to ?0.5 V as measured by a cyclic voltammetry method wherein Ar1 represents a divalent aromatic hydrocarbon group or a divalent heterocyclic group, and these groups may be substituted by a substituent.

Abstract: A polymer comprising a repeating unit represented by the following general formula (I). (In the formula, Ar1 represents a divalent aromatic hydrocarbon or divalent heterocyclic group, X1, Y1, X2 and Y2 each independently represent a fluorine atom or alkylthio group, and X1 and Y1 and X2 and Y2 may together form a carbonyl or thiocarbonyl group with their bonding carbon atom.

Abstract: A polymer having a repeating unit represented by the following general formula (I) and a ferrocene-based reduction potential of ?1.5 to ?0.5 V as measured by a cyclic voltammetry method wherein Ar1 represents a divalent aromatic hydrocarbon group or a divalent heterocyclic group, and these groups may be substituted by a substituent.

Abstract: A polymer comprising a repeating unit represented by the following general formula (I). (In the formula, Ar1 represents a divalent aromatic hydrocarbon or divalent heterocyclic group, X1, Y1, X2 and Y2 each independently represent a fluorine atom or alkylthio group, and X1 and Y1 and X2 and Y2 may together form a carbonyl or thiocarbonyl group with their bonding carbon atom.