NOVELTY - The bicontinuous, interpenetrating composite comprises a semiconducting organic phase, a semiconducting particulate phase, p-n junctions at interfaces between the semiconducting organic phase and the semiconducting particulate phase, and a processing aid. The semiconducting organic phase and the semiconducting particulate phase interpenetrate are bicontinuous. The semiconducting organic phase is the p-type and/or n-type organic semiconductors. The semiconducting particulate phase is n-type and p-type particulate semiconductors. The p-n junctions include a phenylene bound.    USE - The bicontinuous, interpenetrating composite is useful in a photovoltaic device (claimed) such as a solar cell, where the composite is a photovoltaic material.    ADVANTAGE - The bicontinuous, interpenetrating composite enhances the photovoltaic conversion efficiency and reduces the manufacturing cost of photovoltaic devices.    DETAILED DESCRIPTION - The bicontinuous, interpenetrating composite comprises a semiconducting organic phase, a semiconducting particulate phase, p-n junctions at interfaces between the semiconducting organic phase and the semiconducting particulate phase, and a processing aid. The semiconducting organic phase and the semiconducting particulate phase interpenetrate are bicontinuous. The semiconducting organic phase is p-type and/or n-type organic semiconductors. The semiconducting particulate phase is n-type and p-type particulate semiconductors. The p-n junctions include a phenylene bound to the particulate phase. The semiconducting particulate phase comprises first and second particles that have different band gaps and a diameter of 1-100 nm. The first particles have an amount of surface treatment that is greater than the second particles. INDEPENDENT CLAIMS are included for:    (1) a photovoltaic device; and    (2) a method of manufacturing a bicontinuous, interpenetrating composite.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of elements of a solar cell.