Structural instability of annealed a-Si/a-Ge nanostructures

C. Frigeri, L. Nasi, M. Serenyi, A. Csik, Z. Erdely, Dl Beke

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is shown that heat treatments cause remarkable structural instability in hydrogenated nanostructures made of alternating 3 nm thick layers of a-Si and a-Ge deposited by sputtering. Upon annealing surface bumps are formed. Their size and density increase with increasing H content. They appear due to the presence of H bubbles in the samples, which even blow up for the highest H content. The H bubbles are produced by accumulation of H2 molecules made possible by the break of the Si-H and Ge-H bonds driven by energy supplied by the heat treatment and the recombination of thermally generated carriers.

Original languageEnglish
Title of host publicationPhysics, Chemistry and Application of Nanostructures - Proceedings of the International Conference, NANOMEETING 2009
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages85-88
Number of pages4
ISBN (Print)9814280356, 9789814280358
DOIs
Publication statusPublished - 2009
EventInternational Conference on Physics, Chemistry and Application of Nanostructures, NANOMEETING 2009 - Minsk, Belarus
Duration: May 26 2009May 29 2009

Publication series

NamePhysics, Chemistry and Application of Nanostructures - Proceedings of the International Conference, NANOMEETING 2009

Other

OtherInternational Conference on Physics, Chemistry and Application of Nanostructures, NANOMEETING 2009
CountryBelarus
CityMinsk
Period5/26/095/29/09

ASJC Scopus subject areas

  • Biotechnology

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  • Cite this

    Frigeri, C., Nasi, L., Serenyi, M., Csik, A., Erdely, Z., & Beke, D. (2009). Structural instability of annealed a-Si/a-Ge nanostructures. In Physics, Chemistry and Application of Nanostructures - Proceedings of the International Conference, NANOMEETING 2009 (pp. 85-88). (Physics, Chemistry and Application of Nanostructures - Proceedings of the International Conference, NANOMEETING 2009). World Scientific Publishing Co. Pte Ltd. https://doi.org/10.1142/9789814280365_0019