Photoelectric conversion element, photoelectric conversion module, and solar photovoltaic power generation system

Abstract

There is provided a photoelectric conversion element which can prevent the contact resistance between a non-crystalline semiconductor layer containing impurities and an electrode formed on the non-crystalline semiconductor layer from increasing, and can improve the element characteristics. A photoelectric conversion element () includes a semiconductor substrate (), a first semiconductor layer (), a second semiconductor layer (), a first electrode (), and a second electrode (). The first semiconductor layer () has a first conductive type. The second semiconductor layer () has a second conductive type opposite to the first conductive type. The first electrode () is formed on the first semiconductor layer (). The second electrode () is formed on the second semiconductor layer (). At least one electrode of the first electrode () and the second electrode () includes a plurality of metal crystal grains. The average crystal grain size of the metal crystal grains in the in-surface direction of electrode is greater than the thickness of the electrode.