Photoluminescence and electrochemical properties of Samarium-doped SrO-BaO-Al[formula omitted]O[formula omitted] nanocomposites synthesized through green solution combustion

Abstract

indent In the present communication, the photoluminescence (PL) and electrochemical studies were performed on the SrO-BaO-Al2O3 (1:1:1):Sm3+ nanocomposite (NCs). A green solution combustion method was utilized to synthesize SrO-BaO-Al2O3:Sm (1–9 mol%) NCs. Bragg reflections corresponding to SrO (hexagonal), BaO (tetragonal) and γ-Al2O3 (spinel cubic) are observed. The tuning of Eg from 3.34 to 3.41 eV takes place with the increase in the concentration of the dopant. The PL investigation showed that the synthesized sample exhibits orange–red emission and quenching is noticed at 7 mol% Sm3+ concentration within the host matrix. The coordinates of CIE and CCT confirm the orange–red emission of Sm3+ within the host lattice, suggesting potential applications in residential and hospital settings. The customized NCs demonstrate outstanding electrochemical performance. The specific capacitance ranges from 97.07 F/g to 162.85 F/g, within a scan rate of 10 mV/s, increasing with the Sm3+ concentration of dopant from 1 to 9 mol%, respectively. These Samarium-doped SBA NCs turn up as encouraging contenders for advanced systems for energy storage and dynamic display technologies, combining efficient energy storage with vibrant display capabilities synergistically.