Vol. 7, Issue 2, Part B (2025)

The electrical characteristics of a perovskite solar cell made of multi-walled carbon nanotubes (MWCNTs), cesium lead bromide (CsPbBr3QD), and MXene show promise for enhancing photovoltaic performance. Both MXene and MWCNTs enhance charge collection and reduce recombination by serving as electron transport layers (ETLs) and/or hole transport layers (HTLs). With its long carrier diffusion lengths, high absorption coefficient, and advantageous bandgap, CsPbBr3QD functions as a light absorber and helps achieve a 3.5% power conversion efficiency. The power efficiency achieved surpasses that of CsPbBr3QD either alone or in conjunction with MXene.