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Synthesis of gallium nitride nanowires by Sublimation Sandwich Method

Pawel Dominik 1Witold Adamkiewicz 1Dariusz Smoleń 1Andrzej Ostrowski 1Sławomir Podsiadło 1Jarosław Judek 2Cezariusz Jastrzebski 2Wojtek Gebicki 2Krzysztof Fronc 3Jerzy Wróbel 3Piotr Caban 4Wlodek Strupinski 4

1. Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, Warszawa 00-664, Poland
2. Warsaw University of Technology, Faculty of Physics, Koszykowa 75, Warszawa 00-662, Poland
3. Polish Academy of Sciences, Institute of Physics, al. Lotników 32/46, Warszawa 02-668, Poland
4. Institute of Electronic Materials Technology (ITME), Wólczyńska 133, Warszawa 01-919, 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.


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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