OHMIC contact between thin film solar cell and carbon-based transparent electrode

摘要

A photovoltaic device and method include a photovoltaic stack having an N-doped layer, a P-doped layer and an intrinsic layer. A transparent electrode is formed on the photovoltaic stack and includes a carbon based layer and a high work function metal layer. The high work function metal layer is disposed at an interface between the carbon based layer and the P-doped layer such that the high work function metal layer forms a reduced barrier contact and is light transmissive.