Graphene as transparent and current spreading electrode in silicon solar cell
Sanjay K. Behura,
Pramila Mahala,
Sasmita Nayak,
Omkar Jani
Affiliations
Sanjay K. Behura
Solar Energy Research Wing, Gujarat Energy Research and Management Institute - Research, Innovation and Incubation Centre, Gandhinagar 382007, Gujarat, India
Pramila Mahala
School of Solar Energy, Pandit Deendayal Petroleum University, Gandhinagar 382007, Gujarat, India
Sasmita Nayak
Solar Energy Research Wing, Gujarat Energy Research and Management Institute - Research, Innovation and Incubation Centre, Gandhinagar 382007, Gujarat, India
Omkar Jani
Solar Energy Research Wing, Gujarat Energy Research and Management Institute - Research, Innovation and Incubation Centre, Gandhinagar 382007, Gujarat, India
Fabricated bi-layer graphene (BLG) has been studied as transparent and current spreading electrode (TCSE) for silicon solar cell, using TCAD-Silvaco 2D simulation. We have carried out comparative study using both Ag grids and BLG as current spreading electrode (CSE) and TCSE, respectively. Our study reveals that BLG based solar cell shows better efficiency of 24.85% than Ag-based cell (21.44%), in all of the critical aspects, including generation rate, recombination rate, electric field, potential and quantum efficiency. Further BLG based cell exhibits pronounce rectifying behavior, low saturation current, and good turn-on voltage while studying in dark.
