Photoconductive thin film, and photovoltaic device making use of the same

摘要

A photoconductive thin film formed on a substrate and having at least hydrogen and crystal grains of silicon, which film has an Urbach energy Eu of 60 meV or below as measured by the constant photocurrent method. This film provides a photoconductive thin film free of light degradation and having superior photoconductivity, and provides a photovoltaic device having superior temperature characteristics and long-term stability.