Porous p-Cu₂O films were prepared on indium tin oxide coated glass from a colloidal Cu₂O-methanol solution.  Annealing process was problematic to maintain the chemical identity of Cu₂O.  The photon to current conversion efficiency of the colloidal Cu₂O film  in a 0.5 M Na₂SO₄ aqueous solution was approximately twice more than electrodeposited Cu₂O films.  The enhancement is attributed to the increased interfacial area between the film and the solution, which is due to the porous nature of the colloidal Cu₂O film.  The colloidal Cu₂O film was stable in the aqueous solution under illumination with a 100 W tungsten lamp for 2 hrs.