Research Information System
GDCh (German Chemical Society)-Science Forum Chemistry, Frankfurt Am Main, Germany, 30 August - 02 September 2010, pp.340, (Full Text)
The key-step for the synthesis of reliable and well defined nano-materials is to control defects and morphology of the particles as well as to provide a high dispersion of the doping ingredient in the matrix at the nanoscale without the incorporation of other impurities. Since this is very difficult to achieve by conventional mixing procedures we are currently developing novel types of heterobimetallic single-source precursors which are suitable to pre-organised the appropriate particle composition, morphology and dispersion of the particles at the nanoscale.
Doping ZnO with certain elements presents itself as an effective method to modify its electrical, optical, and magnetic properties. In addition, Sn-doped ZnO nanowires exhibit significantly improved field emission characteristics in comparison with undoped ones and a reduced resistance as the Sn content increases. [1]
We present a novel technique for the successful synthesis and characterization of cubane-like heterobimetallic Sn/Zn precursors and their facile thermal decomposition to the desired Sn-doped ZnO nanocrystals that exhibit very interesting optoelectronic properties. [2]
[1] R. Deng, X.-T. Zhang, E. Zhang, Y. Liang, Z. Liu, H.-Y. Xu, S.-K. Hark The Journal of Physical Chemistry C 2007, 111, 13013.
[2] Y. Aksu, M. Tsaroucha, M. Driess, International Patent Application 2009 (submitted)