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1. 发明申请

US20110005582A1 PHOTOVOLTAIC CELLS HAVING METAL WRAP THROUGH AND IMPROVED PASSIVATION 有权
标题翻译：具有金属带的光伏电池通过并改善了钝化
公开(公告)号：US20110005582A1
公开(公告)日：2011-01-13
申请号：US12792624
申请日：2010-06-02
申请人： Jozef Szlufcik , Christophe Allebe , Frederic Dross , Guy Baucarne
发明人： Jozef Szlufcik , Christophe Allebe , Frederic Dross , Guy Baucarne
IPC分类号： H01L31/04 , H01L31/18
CPC分类号： H01L31/1804 , H01L31/0224 , H01L31/022425 , H01L31/022441 , H01L31/02245 , Y02E10/547 , Y02P70/521
摘要： A photovoltaic device is disclosed. In one aspect, the device is formed in a semiconductor substrate. It has a radiation receiving front surface and a rear surface. The device may have a first region of one conductivity type, a second region with the opposite conductivity type adjacent to the front surface, and an antireflection layer. The rear surface is covered by a dielectric layer covering also an inside surface of the via. The front surface has current collecting conductive contacts. The rear surface has conductive contacts extending through the dielectric. A conductive path is in the via for photogenerated current from the front surface. By having the dielectric all over, no aligning and masking is needed. The same dielectric serves to insulate, provide thermal protection, and helps in surface and bulk passivation. It also avoids the need for a junction region near the via, hence reducing unwanted recombination currents.
摘要翻译：公开了一种光电器件。在一个方面中，器件形成在半导体衬底中。它具有辐射接收前表面和后表面。该器件可以具有一种导电类型的第一区域，具有与前表面相邻的相反导电类型的第二区域和抗反射层。后表面被也覆盖通孔内表面的电介质层覆盖。前表面具有集流导电触点。后表面具有延伸穿过电介质的导电触点。导电路径在通孔中，用于来自前表面的光生电流。通过使电介质全部结束，不需要对准和掩蔽。相同的电介质用于绝缘，提供热保护，并有助于表面和体积钝化。它也避免了需要靠近通孔的结区域，从而减少不必要的复合电流。

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