Enhanced Functionalities of Co–Doped Sr–Eu Lanthanum Nickel Manganese Oxide (La2NiMnO6): A Review of Properties and Applications

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ABSTRACT

This review article provides a detailed exploration of the multifunctional properties of La₂NiMnO₆ (LNMO), a double perovskite compound with vast potential in advanced technological applications. As an oxide material, LNMO exhibits a unique combination of half-metallicity, ferromagnetic Curie temperature, and dielectric as well as magnetic ordering. These properties, along with the material’s adaptability for various technological innovations, have drawn significant research interest. Specifically, the performance of LNMO in applications such as hydrogen generation, fuel cells, photocatalytic degradation, gas sensing, and lead-free perovskite solar cells underlines its versatility. The article delves into how co-doping with strontium (Sr) and europium (Eu) at the A- and B-sites, respectively, influences these properties, opening pathways for new advancements in energy storage, spintronics, and optoelectronics. This review compiles key findings from recent studies on LNMO, focusing on its structural versatility, adaptability to various dopants, and the resulting effects on electronic, magnetic, and catalytic properties. Additionally, the influence of atomic-scale substitutions on the electronic and magnetic characteristics of LNMO are examined, underscoring its potential in environmentally friendly and high-efficiency devices. By analyzing the latest developments in material performance and applications, this article provides valuable insights into optimizing LNMO for emerging technologies, including spin-based transistors, light-emitting diodes, and photovoltaic devices. Further research directions to enhance the stability, efficiency, and environmental impact of LNMO are also discussed.

Significance of the study:

This review highlights the substantial potential of co-doped La₂NiMnO₆ (LNMO) for diverse applications in advanced technologies. The dual doping with strontium (Sr) and europium (Eu) enhances LNMO’s electronic, magnetic, and catalytic properties, making it an excellent candidate for energy storage, optoelectronic devices, and spintronic applications. By examining LNMO’s adaptable properties and their impact on performance, this study emphasizes LNMO’s significance for sustainable and high-efficiency technologies like hydrogen generation, solar cells, and environmentally friendly electronic devices.

Summary of the study:

This review explores the unique functionalities of La₂NiMnO₆ (LNMO) when co-doped with strontium and europium, emphasizing its properties and applications across multiple fields. It assesses LNMO’s half-metallicity, Curie temperature, and responsiveness to magnetic and dielectric stimuli, which make it ideal for energy storage, optoelectronic, and spintronic applications. The article consolidates recent research findings on LNMO’s structural, electronic, and catalytic behaviors, underscoring its versatility and potential for sustainable, efficient technologies in fields like solar energy, hydrogen generation, and lead-free electronic devices.