Back contact solar cell and manufacturing method therefor, and photovoltaic module

Abstract

The present disclosure provides a back contact solar cell and a manufacturing method therefor, and a photovoltaic module, In one example, a back contact solar cell includes a semiconductor substrate, a transparent conductive layer, and an isolating protective structure. The semiconductor substrate includes a first surface and a second surface opposite to the first surface. The second surface includes N-type regions and P-type regions alternately distributed at intervals, and an isolating region between each of the N-type regions and a corresponding P-type region. The transparent conductive layer covers the second surface. An isolating groove extending through at least the transparent conductive layer is formed on each isolating region The isolating protective structure is formed on a partial region of a groove bottom of the isolating groove. The isolating protective structure includes at least a material of the transparent conductive layer.