@article{ajer20231124,
author={{Sow, Alioune and Seck, Saliou and Mane, Mamadou Salif and Ndiaye, Amadou and Ndiaye, Bachirou and Keita, El-Hadji Mamadou and Mbow, Babacar and Sene, Cheikh},
title={Effects of Transport Window Layers on All-inorganic CsPbI<SUB>3-x</SUB>Br<SUB>x</SUB> Perovskites Based Solar Cells},
journal={American Journal of Energy Research},
volume={11},
number={2},
pages={93--99},
year={2023},
url={http://pubs.sciepub.com/ajer/11/2/4},
issn={2328-7330},
abstract={All-inorganic perovskites based on <i>CsPbI</i><SUB><i>3-x</i></SUB><i>Br</i><SUB><i>x</i></SUB> are promising halides for use in efficient photovoltaic devices due to their high stability. This generated a tremendous research interest from the scientific community to move towards this class of materials. However, perovskite solar cells based on <i>CsPbI</i><SUB><i>3-x</i></SUB><i>Br</i><SUB><i>x</i></SUB> have not yet achieved the expected conversion efficiencies compared to their hybrid counterpart. In this work we used SCAPS 1D to model the all-inorganic <i>CsPbI</i><SUB><i>3-x</i></SUB><i>Br</i><SUB><i>x</i></SUB> based solar cell, investigate and discuss the limitations of the device in order to improve its conversion efficiency. For this purpose, we used the normal (n-i-p) configuration with <i>Al/ETL/CsPbI</i><SUB><i>3-x</i></SUB><i>Br</i><SUB><i>x</i></SUB><i>/HTL</i>/ITO structuring. By varying the inorganic transport layers HTL and ETL, our study revealed that the best HTL/ETL combination is Cu<SUB>2</SUB>O as HTL and SnO<SUB>2</SUB> as ETL. We otherwise have shown that acceptor and donor doping of Cu<SUB>2</SUB>O and SnO<SUB>2</SUB> respectively offers a mean to reduce recombination in the device. The study showed that the acceptor (<i>N</i><SUB><i>A</i></SUB>=10<SUP>18</SUP>cm<SUP>-3</SUP>) and donor (<i>N</i><SUB><i>D</i></SUB>=10<SUP>17</SUP>cm<SUP>-3</SUP>) doping rates are the best dopant values for the cell. By optimizing the various study parameters, we obtained a high-performance normal structure PSC with a conversion efficiency (PCE) of 17.87%.},
doi={10.12691/ajer-11-2-4}
publisher={Science and Education Publishing}
}