NOVELTY - A heat sink (130) in thermal communication with unexposed surface of a photovoltaic cell (110) comprises a base positioned parallel to unexposed surface of photovoltaic cell, and fins attached to the base and positioned parallel to each other. The base has a thickness between 0.05 inch and 0.5 inch. Each fin has a height between 0.25 inches and 7 inches, a center to center spacing between 0.05 inch and 1 inch, and a width between 0.001 inch and 0.25 inch. The center to center spacing is sufficient to provide a channel between the fins for cooling air to enter.    USE - Solar roof tiles for producing solar energy from sun's radiation.    ADVANTAGE - Increases efficiency in converting solar energy to electricity. Aesthetically attractive, and well suited for installation on unfinished rooftops. Minimizes or prevents weather from reaching the underlying materials of a rooftop and together form a finished roof of a house. Solar roof tiles can be directly attached to battens or purlins for ease of installation. Improves heat dissipation by providing thermal interface layer between the heat sink and the unexposed surface of photovoltaic cell.    DETAILED DESCRIPTION - A housing (120) is mounted on a rooftop. A photovoltaic cell is contained in the housing in a state light-receiving surfaces of the photovoltaic cell are exposed along a first surface of the housing. The heat sink is constructed of extruded aluminum or black anodized aluminum, and the base is constructed of conductive polymer, such as elastomer. The thin-film photovoltaic cell comprises amorphous silicon, polycrystalline silicon, nanocrystalline silicon, microcrystalline silicon, cadmium telluride, copper indium selenide/sulfide (CIS), copper indium gallium selenide (CIGS), an organic semiconductor, or a light absorbing dye.    DESCRIPTION OF DRAWING(S) - The drawing shows the perspective view of solar roof tile.    Photovoltaic cell (110)    Housing (120)    Heat sink (130)    Projections (140)    Overhangs (180,190)