Chemistry, Physics and Technology of Surface, 2013, 4 (4), 366-372.

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



M. N. Doroshenko, A. I. Gerasimchuk, E. A. Mazurenko

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.

Keywords


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

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References


1. Wang D., Dai H. Low-temperature synthesis of single-crystal germanium nanowires by chemical vapor deposition // Angew. Chem. – 2002. – V. 41, N 19. – P. 4783–4786.

2. Tutuc E., Guha S., Chu J. O. Morphology of germanium nanowires grown in presence of B2H6 // Appl. Phys. Lett. – 2006. – V. 88, N 11. – P. 043113–043116.

3. Seifert G., Köhler Th., Hajnal Z. et al. Tubular structures of germanium // Solid State Commun. – 2001. – V. 119, N 12. – P. 653–657.

4. Mei Y.F., Siu G.G., Li Z.M. et al. Polycrystalline tubular nanostructures of germanium // J. Cryst. Growth. – 2005. – V. 285, N 1. – P. 59–65.

5. Cassel A., Delzeit L., Nguyen C. et al. Carbon nanotubes by CVD and applications // J. Phys. IV. – 2001. – V. 11, (PR3). – P. 401–409.

6. Ivanov V., Nagy J. B., Lambin P. The study of carbon nanotubules produced by catalytic method // Chem. Phys. Lett. – 1994. – V. 223, N 8. – P. 329–335.

7. Ivanov V., Fonseca A., Nagy J. B. Catalytic production and purification of nanotubules having fullerene-scale diameters // Carbon. – 1995. – V. 33, N 7. – P. 1727–1738.

8.Nalwa H. S. Encyclopedia of Nanoscience and Nanotechnology – Valencia, California: American Scientific Publishers, 2003. – 425 p.

9. Дорошенко М.Н., Железнова Л.И., Трачевский В.В. и др. Синтез и свойства дигидроксо–бис-1,1,1,5,5,5–гексафтор–2,4–пентандионата германия(IV) – прекурсора наноструктур // Укр. хим. журн. – 2012. – Т. 78, № 12. – С. 79–82.

10. Дорошенко М.Н., Железнова Л.И., Мазуренко Е.А. RF PE MOCVD–синтез и морфологические характеристики герма-ниевых наночастиц // Укр. хим. журн. – 2012. – Т. 78, № 8. – С. 75–78.

11. Дорошенко М. Н., Набока O. В., Мазуренко Е.А. Синтез каталитически активных подложек для получения наноструктур германия(IV) // Укр. хим. журн. – 2011. – Т. 77, № 8. – С. 94–99.

12. Sha J., Niu J., Ma X. et al. Silicon nanotubes // Adv. Mater. – 2002. – V. 14, N 17. –   P. 1219–1221.

13. Perepichka D.F., Rosei F. Silicon Nanotubes // Small. – 2006. – V. 2, N 1. – P. 22–25.

14. Mu Ch., Yu Y., Liao W. et al. Controlling growth and field emission properties of silicon nanotube arrays by multistep template replication and chemical vapour deposition // Appl. Phys. Lett. – 2005. – V. 87, N 1. – P. 1–3.

15. Фурсова Е. Ю., Кузнецова О. В., Романенко Г.В. и др. Гетероспиновые комплексы много-ядерных соединений Ni(II), содержащих гексафторацетилацетонатный и пивалатный лиганды, с нитроксилами // Известия РАН. Сер. хим. – 2010. – № 2. – С. 330–335.

16. Wagner R.S., Ellis W.C. Vapor-liquid-solid mechanism of single crystal grown // Appl. Phys. Lett. – 1964. – V. 4, N 5. – P. 89–90.

17. Greytak A.B., Lauhon L.J., Gudiksen M. S. et al. Growth and transport properties of complementary germanium nanowire field-effect transistors // Appl. Phys. Lett. – 2004. – V. 84, N 21. – P. 4176–4178.




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