THIN FILM PHOTOVOLTAIC CELL AND METHOD OF MANUFACTURE OF SAME

摘要

A thin film photovoltaic cell has an insulating substrate divided into a plurality of unit cells by alternately forming patterning lines in layers stacked on two faces of the insulating substrate; a rear face electrode layer, a photoelectric conversion layer, and a transparent electrode layer stacked in order on one face of the insulating substrate accordingly; and a back face electrode layer deposited on the other face of the insulating substrate. The photovoltaic cell further has a first penetrating hole penetrating the insulating substrate to electrically connect the transparent electrode layer and the back face electrode layer; a second penetrating hole penetrating the insulating substrate to electrically connect the rear face electrode layer and the back face electrode layer; and a transparent electrode layer removal portion in which the transparent electrode layer at least in a region surrounding the second penetrating hole is removed by an ultraviolet pulsed laser.

主权项

1. A thin film photovoltaic cell, comprising:
an insulating substrate, a rear face electrode layer, a photoelectric conversion layer, and a transparent electrode layer stacked in order on one face of the insulating substrate accordingly, and a back face electrode layer deposited on the other face of the insulating substrate, wherein the insulting substrate is divided into a plurality of unit cells by alternately forming patterning lines in the layers stacked on two faces of the insulating substrate in which adjacent unit cells are connected in series, the transparent electrode layer and the back face electrode layer are electrically connected through a first penetrating hole which penetrates the insulating substrate, the rear face electrode layer and the back face electrode layer are electrically connected through a second penetrating hole which penetrates the insulating substrate, the thin film photovoltaic cell further comprises a transparent electrode layer removal portion in which the transparent electrode layer is removed in at least a region surrounding the second penetrating hole by an ultraviolet pulsed laser, and in the second penetrating hole, the transparent electrode layer and the back face electrode layer are electrically insulated.