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Abstract

Photovoltaic heterojunction devices, combination hetero- homo-junction devices, and associated methods are provided. In one aspect, for example, a photovoltaic device can include a doped semiconductor substrate having a first textured region and a second textured region opposite the first textured region, a first intrinsic semiconductor layer coupled to the first textured region opposite the semiconductor substrate and a second intrinsic semiconductor layer coupled to the second textured region opposite the semiconductor substrate. A first semiconductor layer can be coupled to the first intrinsic semiconductor layer opposite the first textured region, where the first semiconductor layer is doped to an opposite polarity of the doped semiconductor substrate. A second semiconductor layer can be coupled to the second intrinsic semiconductor layer opposite the second textured region, where the second semiconductor layer is doped to a same polarity as the semiconductor substrate but having a higher dopant concentration as the semiconductor substrate.

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First Claim