Heterojunction solar cell, preparation method thereof, and photovoltaic module

Abstract

Provided are a heterojunction solar cell, a preparation method thereof, and a photovoltaic module. The heterojunction solar cell includes: a silicon substrate having a first surface, a second surface opposite to the first surface, and a sidewall surface; at least one backside intrinsic layer, a backside doped layer, a second transparent conductive oxide layer, and a second electrode that are sequentially stacked on the first surface, the backside doped layer being further disposed on the sidewall surface; at least one frontside intrinsic layer, a frontside doped layer, a first transparent conductive oxide layer, and a first electrode that are sequentially stacked on the second surface, the frontside doped layer being further disposed on the sidewall surface; and a first intrinsic layer disposed between the frontside doped layer and the backside doped layer on the sidewall surface.

Dependencies are inferred from the claim text.