Exploring the Structural and Optical Properties of MoSe₂ for Solar Cell Performance

Abstract Efficient energy absorption is critical in perovskite solar cells (PSCs) for effective electron collection and mitigation of hole migration. Molybdenum diselenide (MoSe 2 ) was produced using a simple hydrothermal process and subsequently studied for its structural and optical properties using various techniques, including XRD, RAMAN, FESEM, EDX, UV-Visible, BET, and XPS. The results show that the enhanced crystalline morphology, size, optical band gap, and surface area demonstrate promising attributes for solar cell applications. Furthermore, the I-V investigation reveals that MoSe 2 -based PSCs achieve a notable efficiency of electricity conversion is 7.97%. The increased performance is because of the greater surface area of MoSe 2 . which facilitates increased light absorption, and its ability to accelerate charge transfer within the electron transport layer. Moreover, the structural integrity of MoSe 2 contributes significantly to its efficacy in converting solar energy into electrical energy. These findings underscore MoSe 2 as a compelling candidate for advancing solar cell technologies, offering potential pathways for achieving higher efficiency and reliability in future solar energy systems.