2nd International Conference on Engineering, Natural Sciences, and Technological Developments (ICENSTED 2025), Bayburt, Türkiye, 20 - 23 Haziran 2025, ss.85, (Özet Bildiri)
Addressing challenges such as rising fossil fuel costs, air pollution, and global warming requires extensive research into advanced energy storage systems. With rapid technological advancements, the demand for electrical energy has significantly increased in everyday devices, including vehicles, smartphones, and household appliances. Consequently, energy harvested from renewable sources needs efficient delivery to end-users. Additionally, capturing and reusing kinetic energy from intermittent operations, such as stop-and-go movements in transportation vehicles, is crucial. While batteries have traditionally fulfilled the role of energy storage, supercapacitors provide significant advantages such as high energy density, power capability, and exceptional cycling stability. Moreover, as the trend towards wireless devices intensifies, developing efficient, reliable energy storage solutions becomes increasingly critical. Supercapacitors are particularly promising in meeting the rising demands of next-generation energy storage systems. This study looks into making supercapacitor electrode materials using molybdenum diselenide (MoSe2), which is part of a group of materials known as two-dimensional transition metal dichalcogenides (2D TMDC). MoSe2 demonstrates attractive properties for electrochemical, photocatalytic, and optoelectronic applications. Its layered structure, combined with the advantageous size and electrical conductivity of selenium (Se) atoms, positions MoSe₂ as a highly suitable material for electrochemical energy storage applications. The primary aim was to enhance ion storage capacity by increasing electrode surface area. Nano-wall structured MoSe2 thin films were synthesized at 300 o C via magnetron sputtering, employing different growth durations. The MoSe2 films were examined for their structure, shape, and electrical properties to see how well they work as supercapacitor electrodes. The study determined that nano-wall structures formed at an optimal growth duration significantly improved capacitance and electrochemical performance by expanding the electrode's active surface area.