Determination of Young's modulus of Sb₂S₃ nanowires by in situ resonance and bending methods

In this study we address the mechanical properties of Sb₂S₃ nanowires and determine their Young's modulus using in situ electricfield- induced mechanical resonance and static bending tests on individual Sb₂S₃ nanowires with cross-sectional areas ranging from 1.1·10⁴ nm² to 7.8·10⁴ nm². Mutually orthogonal resonances are observed and their origin explained by asymmetric cross section of nanowires. The results obtained from the two methods are consistent and show that nanowires exhibit Young's moduli comparable to the value for macroscopic material. An increasing trend of measured values of Young's modulus is observed for smaller thickness samples.