AUTHOR=Liu Wenfeng , Zhou Ziyou , Zhou Jicheng 

TITLE=Optimization of doping design for planar P-N homologous junction perovskite solar cells

JOURNAL=Frontiers in Chemistry

VOLUME=12

YEAR=2024

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2024.1378332

DOI=10.3389/fchem.2024.1378332

ISSN=2296-2646

ABSTRACT=<p>In this study, we used the solar cell capacitance simulator (SCAPS) to analyse numerically the performance of perovskite solar cells (PSCs) containing CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>. The findings indicate that P-N homologous junction processing based on traditional P-I-N PSCs can enhance the photoelectric conversion efficiency (PCE). Furthermore, the authors analyzed the effect of uniform P-N doping of CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>, concluding that the photoelectric efficiency can be improved from 16.10% to 19.03% after doping. In addition, the optical properties of PSCs under solar irradiation are simulated using finite difference time-domain (FDTD) software under AM1.5. This method is applied to investigate the effect of the P-N uniform junction on the internal electric field generated within the cell. The generation of this electric field promotes carrier separation and transmission, ultimately increasing the open circuit voltage (V<sub>OC</sub>) of the solar cell from 1.03 to 1.12 V. The usage of P-N junctions enhances PSCs performance and exhibits vast potential for designing and developing PSCs.</p>