Synthesis of gallium nitride nanowires by Sublimation Sandwich Method
|Pawel Dominik 1, Witold Adamkiewicz 1, Dariusz Smoleń 1, Andrzej Ostrowski 1, Sławomir Podsiadło 1, Jarosław Judek 2, Cezariusz Jastrzebski 2, Wojtek Gebicki 2, Krzysztof Fronc 3, Jerzy Wróbel 3, Piotr Caban 4, Wlodek Strupinski 4|
1. Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, Warszawa 00-664, Poland
Recently the research on obtaining nanosize materials such as nanowires, nanorods or nanoballs is one of the most prospective topics in the semiconductor technology. We present results of experiments concerning obtaining gallium nitride nanocrystals by Sublimation Sandwich Method. As starting materials we used a mixture of gallium and gallium nitride powder and gaseous ammonia as source of nitrogen. The GaN nanocrystals grow on various substrates with gold nanoballs (a catalyst agent) by the vapor- liquid- solid mechanism. The process reactions are as follows:
Ga + Au → GaAu(alloy)
GaAu(alloy )+ NH3 → GaN + 1.5 H2 + Au
The obtained gallium nitride nanocrystals were examined by scanning electron microscopy (SEM), Raman studies and Powder X-ray diffraction (PXRD).
This work has been supported by the European Union in the framework of European Social Fund through the Warsaw University of Technology Development Programme.
Presentation: Poster at E-MRS Fall Meeting 2009, Symposium H, by Pawel Dominik
See On-line Journal of E-MRS Fall Meeting 2009
Submitted: 2009-05-08 09:49 Revised: 2009-06-07 00:48