The present disclosure provides dual-function photovoltaic (PV) devices that generate electric current and have a colored surface or colored appearance. The PV devices may be angle insensitive and polarization independent. Such a dual-function PV device may have an ultra-thin photoactive layer (e.g., comprising an undoped amorphous silicon) with a thickness of ? about 50 nm. The PV device is configured to filter (transmit or reflect) a portion of an electromagnetic spectrum, providing a controllable and tunable color appearance. Such nanometer a-Si/organic hybrid cells are designed to transmit or reflect angle insensitive colors, electrically powering up to 2% to 3% or higher by efficient absorbed photon to charge conversion. In certain variations, the present disclosure further provides decorative power generating panels creating angle insensitive transmissive or reflective colors.