Abstract
ZnO nanowires (NWs) growth is commonly performed by heating a ZnO:C powder applying the carbothermal reactions ZnOs + Cs → Znv + COg; ZnOs + COg → Znv + CO2g. A carrier gas transfers the evaporated Zn species to the growth region where they are oxidized and NWs form. This work explores the role of different gases (O2, CO2, H2), introduced to Ar in different concentrations in the carbothermal growth of ZnO NWs. Scanning electron microscopy (SEM) is used to study the grown NWs. Residual gas analysis (RGA) is employed to monitor the gaseous species during growth. Insight into the physical chemical processes involved both in the source and in the growth regions is obtained. This deep understanding of the processes enables optimization of reactive gas concentration, flow, and type achieving homogeneous NW growth over large areas as requested for industrial applications.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
