| 摘要 |
A back contact solar cell with organic semiconductor heterojunctions is provided. The substrate is made from silicon lightly doped with a first dopant type having a first majority carrier. A second semiconductor layer is formed overlying the texturized substrate topside, made from hydrogenated amorphous silicon (a-Si:H) and doped with the first dopant. An antireflective coating is formed overlying the second semiconductor layer. A third semiconductor layer is formed overlying the first semiconductor substrate backside, made from intrinsic a-Si:H. First and second majority carrier type organic semiconductor layers are formed overlying the third semiconductor layer in patterns. A dielectric organic semiconductor layer is formed overlying the first majority carrier type organic semiconductor layer and the second majority carrier type organic semiconductor layer, filling the spaces in the pattern. A first metal grid is connected to first organic semiconductor contact regions and a second metal grid is connected to the second organic semiconductor contact regions.
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