NOVELTY - The photovoltaic cell (2) comprises a photovoltaic conversion layer (22) capable of converting incident light into hole-electron pairs, and first (20) and second (21) electrodes coupled to two sides of the photovoltaic conversion layer for conducting holes and electrons. The photovoltaic conversion layer comprises a hole transport layer including nanodots (23) mixed for hole transport, a hole blocking layer coupled to the second electrode and an active layer disposed between the hole transport layer and the hole blocking layer, and is a semiconductor material layer having a p-n junction.    USE - Used as a photovoltaic cell.    ADVANTAGE - The photovoltaic cell can be efficiently, rapidly and economically manufactured with improved efficiency and performance, lightweight and high flexibility.    DETAILED DESCRIPTION - The photovoltaic cell (2) comprises a photovoltaic conversion layer (22) capable of converting incident light into hole-electron pairs, and first (20) and second (21) electrodes coupled to two sides of the photovoltaic conversion layer for conducting holes and electrons. The photovoltaic conversion layer comprises a hole transport layer including nanodots (23) mixed for hole transport, a hole blocking layer coupled to the second electrode and an active layer disposed between the hole transport layer and the hole blocking layer, and is a semiconductor material layer having a p-n junction or an organic photovoltaic conversion layer. The hole transport layer is formed between a p-type portion of the semiconductor material layer and the first electrode, is a p-type conductive polymer material mixed with the nanodots, and comprises an organic material. The active layer comprises a polymer material and an inorganic material. The hole blocking layer comprises an inorganic material. The first electrode is a transparent electrode comprising a transparent substrate coated with a conductive material. An INDEPENDENT CLAIM is included for a method for forming a photovoltaic cell.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a photovoltaic cell.    Photovoltaic cell (2)    First electrode (20)    Second electrode (21)    Photovoltaic conversion layer (22)    Nanodots. (23)