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• Catalysts and Inorganic Chemicals Inorganic Compounds Mixed metal/non-metal compounds Miscellaneous mixed metal/non-metals

Calcium Selenide (CAS No. 1305-84-6): An Overview of Its Properties, Applications, and Recent Research Advances

Calcium selenide (CAS No. 1305-84-6) is a compound that has garnered significant attention in the fields of materials science, chemistry, and biomedicine due to its unique properties and potential applications. This compound is a binary compound composed of calcium and selenium, and it exists in various crystalline forms, each with distinct physical and chemical characteristics.

The structure of calcium selenide is typically described as a cubic crystal system, with the most common form being CaSe. The compound exhibits a high degree of thermal stability and is known for its semiconducting properties. These properties make it an attractive material for a variety of applications, including optoelectronics, photovoltaics, and biomedical imaging.

In the realm of optoelectronics, calcium selenide has been explored for its potential use in light-emitting diodes (LEDs) and photodetectors. Recent studies have shown that the compound can be doped with various elements to enhance its optical properties, making it suitable for high-efficiency devices. For instance, a study published in the *Journal of Materials Chemistry C* in 2021 demonstrated that calcium selenide doped with europium (Eu) exhibited enhanced luminescence properties, making it a promising candidate for next-generation LEDs.

In the field of photovoltaics, calcium selenide has been investigated for its potential as a photovoltaic material. The compound's bandgap energy can be tuned by altering its composition or structure, which is crucial for optimizing solar cell performance. A research article in *Advanced Energy Materials* in 2020 reported that thin films of calcium selenide showed promising photovoltaic conversion efficiencies when used in tandem with other materials like perovskites. This finding opens up new avenues for developing more efficient and cost-effective solar cells.

The biomedical applications of calcium selenide are also an area of active research. Selenium is known to have antioxidant properties and plays a crucial role in various biological processes. Calcium selenide nanoparticles have been studied for their potential use in cancer therapy and imaging. A study published in *Biomaterials* in 2019 found that calcium selenide nanoparticles exhibited excellent biocompatibility and could be used as a carrier for targeted drug delivery. Additionally, the nanoparticles showed enhanced contrast in X-ray imaging, making them useful for diagnostic purposes.

From an environmental perspective, the synthesis and processing of calcium selenide have been optimized to minimize environmental impact. Green synthesis methods using biodegradable materials and low-temperature processes have been developed to reduce energy consumption and waste generation. A recent review in *Green Chemistry* highlighted several sustainable approaches to synthesizing calcium selenide, emphasizing the importance of eco-friendly practices in materials science.

In conclusion, calcium selenide (CAS No. 1305-84-6) is a versatile compound with a wide range of applications across multiple fields. Its unique properties make it an attractive material for optoelectronics, photovoltaics, and biomedicine. Ongoing research continues to uncover new possibilities for this compound, driving innovation and advancing our understanding of its potential uses.

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