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Doping through shielded electrical contacts and passivated dielectric layers in high efficiency crystalline solar cells, and their structure and manufacturing method
Doping through shielded electrical contacts and passivated dielectric layers in high efficiency crystalline solar cells, and their structure and manufacturing method
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机译:高效晶体太阳能电池中通过屏蔽电触点和钝化电介质层掺杂及其结构和制造方法
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摘要
Solar cell structures and formation methods which utilize the surface texture in conjunction with a passivating dielectric layer to provide a practical and controllable technique of forming an electrical contact between a conducting layer and underlying substrate through the passivating dielectric layer, achieving both good surface passivation and electrical contact with low recombination losses, as required for high efficiency solar cells. The passivating dielectric layer is intentionally modified to allow direct contact, or tunnel barrier contact, with the substrate. Additional P-N junctions, and dopant gradients, are disclosed to further limit losses and increase efficiency.
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