Uniform In2S3 octahedron-built microspheres: Bioinspired synthesis and optical properties

Uniform In2S3 octahedron-built microspheres were synthesized by using a mild hydrothermal treatment in the presence of L-glutamic acid at 180 °C. The microsphere with an average size of 5 μm was composed of interconnected octahedrons with diameters in the range from 100 to 150 nm. The products were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and X-ray photoelectron spectroscopy (XPS). The synthesis of various hollow and solid sphere structures and flower structures was achieved using different amino acids. This is the first report on synthesizing In2S3 nanostructures using different amino acids to modulate the morphology of the final products. Primary photoluminescence studies on the prepared In2S3 microspheres show promising results.

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