Tree-like SnO2 nanowires and optical properties

▶ Tree-like SnO2 nanowires can be grown as low as 1100 °C by a vapour-solid process using a milled SnO2 powder as the evaporation source. ▶ FT-IR and PL measurements have shown that the tree-like nanostructures lead to superb physical properties. ▶ The PL spectrum of such tree-like nanowires exhibits a strong PL peak at 548 nm.