INTERDIGITATED BACK CONTACT HETEROJUNCTION PHOTOVOLTAIC DEVICE

摘要

A photovoltaic device includes a crystalline substrate having a first dopant conductivity, an interdigitated back contact and a front surface field structure. The front surface field structure includes a crystalline layer formed on the substrate and a noncrystalline layer formed on the crystalline layer. The crystalline layer and the noncrystalline layer are doped with dopants having a same dopant conductivity as the substrate. Methods are also disclosed.

主权项

1. A method for forming a photovoltaic device, comprising:
forming an interdigitated back contact on a crystalline substrate having a first dopant conductivity; and forming a front surface field structure on the substrate by:
forming a crystalline layer on the substrate; andforming an amorphous layer on the crystalline layer, the crystalline layer and the noncrystalline layer being doped with dopants having a same dopant conductivity as the substrate.