Photovoltaic module

A photovoltaic module comprising a transparent substrate and hybrid photovoltaic cells arrayed on the substrate and series connected to each other, the cells comprising:

• a back electrode facing the substrate;
• a transparent front electrode intervening between the substrate and the back electrode;
• a first photovoltaic layer intervening between the front and back electrodes and comprising an amorphous semiconductor layer;
• a second photovoltaic layer intervening between the first photovoltaic layer and the back electrode and comprising a crystalline semiconductor layer;
• and
• a conductive interlayer with a light-transmitting-and-reflecting property intervening between the first and second photovoltaic layers,
• wherein, between a first cell and a second cell being adjacent to each other,
• the front electrode is divided by first and fourth grooves which are apart from each other and filled with a material of the first photovoltaic layer,
• a laminate structure comprising the first photovoltaic layer, the interlayer, the second photovoltaic layer and the back electrode is divided by a second separation groove, the second and first separation grooves sandwiching the fourth groove,
• a laminate structure comprising the first photovoltaic layer, the interlayer and the second photovoltaic layer is divided by a connection groove between the fourth and second separation grooves, the connection groove being filled with a material of the back electrode so as to electrically connect the back electrode of the first cell to the front electrode of the second cell, and
• a laminate structure comprising the first photovoltaic layer and the interlayer is divided by a third separation groove which is filled with a material of the second photovoltaic layer and positioned between the first and fourth grooves, a bottom surface of the third separation groove including a surface of the transparent front electrode.

A photovoltaic module comprising a transparent substrate and hybrid photovoltaic cells arrayed on the substrate and series connected to each other, the cells comprising:

• a back electrode facing the substrate;
• a transparent front electrode intervening between the substrate and the back electrode;
• a first photovoltaic layer intervening between the front and back electrodes and comprising an amorphous semiconductor layer;
• a second photovoltaic layer intervening between the first photovoltaic layer and the back electrode and comprising a crystalline semiconductor layer;
• and
• a conductive interlayer with a light-transmitting-and-reflecting property intervening between the first and second photovoltaic layers,
• wherein, between a first cell and a second cell being adjacent to each other,
• the front electrode is divided by a first separation groove which is filled with a material of the first photovoltaic layer,
• a laminate structure comprising the first photovoltaic layer, the interlayer, the second photovoltaic layer and the back electrode is divided by a second separation groove which is apart from the first separation groove,
• a laminate structure comprising the first photovoltaic layer, the interlayer and the second photovoltaic layer is divided by a connection groove between the first and second separation grooves, the connection groove being filled with a material of the back electrode so as to electrically connect the back electrode of the first cell to the front electrode of the second cell, and
• a laminate structure comprising the front electrode, the first photovoltaic layer and the interlayer is divided by a third separation groove which is filled with a material of the second photovoltaic layer, the connection groove being positioned between the second and third grooves, and the first and third grooves being spaced apart from each other.