Rear contact solar cell with ZrO2 nano structured front surface for efficient light trapping and enhanced surface passivation

In the present work, the impact of ZrO₂ textured front surface on rear contact solar cell has been studied. The efficient light trapping and lower surface recombination rate about ~ 10²⁰ /cm³s has been observed. Result shows, significant improvement in device photovoltaic parameters compared to conventional cell. The 29% higher short circuit current density (Jsc) and 31% higher power conversion efficiency (PCE) compared to planar rear contact cell has been obtained. The Jsc, 28.6 mA/cm² and open circuit voltage (Voc), 623mV has been obtained. This results in 14.3% PCE in sub-10μm-thick device. Finite difference time domain (FDTD) method results in 15.1% PCE. All the simulation have been done using calibrated software program in atlas device simulation.