Catalytic Effect of Surface on PE MOCVD-Synthesis of Germanium Nanotubes

Authors

  • M. N. Doroshenko Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine
  • A. I. Gerasimchuk Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine
  • E. A. Mazurenko Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine

Keywords:

germanium nanotubes, volatile precursor, catalytically active surface, CVD-synthesis, low-temperature plasma

Abstract

Quantum chemical calculations of the coordination compound of Ge(IV) with Hhfa by PM3 have been carried out. The only stable compound has been found to be a complex with composition Ge(hfa)2(OH)2. Porous substrates based on anodic alumina (pore d ~70–150 nm) were synthesized with following deposition of Au nanoclusters (d ~ 5–10 nm)on their surface. It has been shown that using of templates based on Al/Al2O3/Au promotes the formation of germanium nanotubes due to the adsorption-desorption of germanium atoms by surface of Au nanoclusters (VLS-mechanism). PE MOCVD-synthesis (120 °C) of germanium nanotubes of different diameters (~70–180 nm) and shape (homogeneous and curved) using a volatile complex Ge(hfa)2(OH)2 was carried out.

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How to Cite

(1)
Doroshenko, M. N.; Gerasimchuk, A. I.; Mazurenko, E. A. Catalytic Effect of Surface on PE MOCVD-Synthesis of Germanium Nanotubes. Him. Fiz. Tehnol. Poverhni 2013, 4, 366-372.

Issue

Vol. 4 No. 4 (2013): Chemistry, Physics and Technology of Surface / Himia, Fizika ta Tehnologia Poverhni

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