Patent ID: 7309833

Claim:
A photovoltaic device comprising: an anode; a cathode; and at least one photoactive layer wherein the at least one photoactive layer comprises a composition comprising at least one polymer having a glass transition temperature of at least 125° C. and at least one photoactive material, wherein: (a) the photoactive material comprises a light harvesting organic material, (b) the polymer and the photoactive material are in a single phase, (c) the photoactive material comprises at least 20% by weight of the composition, (d) the at least one photoactive layer is in electrical communication with the anode and the cathode, (e) the anode and the cathode are configured to conduct an electric charge from the at least one photoactive layer that is produced by the at least one photoactive layer absorbing light, (f) the anode is transparent and the photovoltaic device further comprises a transparent substrate on a side of the anode facing away from the at least one photoactive layer, and (g) the polymer comprises poly(arylene ether) comprising repeating units of a structure: —(—O—Ar 1 —O—Ar 2 —) m —(—O—Ar 3 —O—Ar 4 —) n — wherein m is 0 to 1, n is 1−m and Ar 1 , Ar 2 , Ar 3 and Ar 4 are independently divalent arylene radicals.