Passivated Emitter and Rear Totally Diffused: PERT Solar Cell-An Overview

An overview of the Passivated Emitter and Rear Totally Diffused (PERT) solar cell is presented, which is a member of Passivated Emitter and Rear Contact (PERC) family. Due to its outstanding properties, n-type PERT is considered as a promising candidate in photovoltaics (PV). In recent years, research efforts have been devoted towards industrialization of PERT mostly based on n-type substrates to benefit from its inherent advantages. In particular, the IMEC's n-PERT developed with Jolywood, a 23.2% certified efficiency of the front side has been achieved which is almost the highest efficiency for industrial n-PERT. Currently research is focused on bifacial n-type PERT cells that are already manufactured industrially and are now in mass-produced in industry. This review is focused on the experimental approach towards monofacial PERT cells with a historical overview, PERT's structure, passivation scheme, contacts formation, light trapping and antireflection coating scheme and their corresponding process steps and approaches.

Automated summary

This article provides an overview of the Passivated Emitter and Rear Totally Diffused (PERT) solar cell, which is considered a promising candidate in the field of photovoltaics. The review focuses on the experimental approach towards monofacial PERT cells, discussing the historical overview, cell structure, passivation scheme, contacts formation, light trapping, and antireflection coating scheme.