Synthesis and Characterization of Sb2S3 Nanorods via Complex Decomposition Approach

Abstract EN

Based on the complex decomposition approach, a simple hydrothermal method has been developed for the synthesizing of Sb2S3 nanorods with high yield in 24 h at 150∘C.

The powder X-ray diffraction pattern shows the Sb2S3 crystals belong to the orthorhombic phase with calculated lattice parameters a=1.120 nm, b=1.128 nm, and c=0.383 nm.

The quantification of energy dispersive X-ray spectrometric analysis peaks give an atomic ratio of 2 : 3 for Sb : S.

TEM and SEM studies reveal that the appearance of the as-prepared Sb2S3 is rod-like which is composed of nanorods with the typical width of 30–160 nm and length of up to 6 μm.

High-resolution transmission electron microscopic (HRTEM) studies reveal that the Sb2S3 is oriented in the [10-1] growth direction.

The band gap calculated from the absorption spectra is found to be 3.29 ev, indicating a considerable blue shift relative to the bulk.

The formation mechanism of Sb2S3 nanostructures is proposed.