Publication date: 1 June 2017
Source:Thin Solid Films, Volume 631
Author(s): Rungroj Tuayjaroen, Tula Jutarosaga
One-dimensional (1-D) and two-dimensional (2-D) wurtzite zinc oxide (ZnO) microstructures were grown on indium tin oxide (ITO)/borosilicate glass substrates via oxygen-assisted thermal chemical vapor deposition (CVD) using zinc (Zn) powder as a precursor with different flow rates of ultra-high purity nitrogen carrier gas (N2 ) at the total pressure of 4502 ) partial pressure. The obtained microstructure evolved from micropin to micropillar and to microsheet in correspondence with the increase of O2 partial pressure. XRD confirmed the transition from 1-D to 2-D microstructure with defects observed from PL spectra. The experiment suggested that the increase of supersaturation in the vapor-solid (VS) growth mechanism caused the shape transition.
Source:Thin Solid Films, Volume 631
Author(s): Rungroj Tuayjaroen, Tula Jutarosaga