In situ tem observation of MgO nanorod growth

Albert G. Nasibulin, Litao Sun, Sampsa Hämäläinen, Sergey D. Shandakov, Florian Banhart, Esko I. Kauppinen

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

The controlled growth of MgO nanorods was investigated under electron irradiation in transmission electron microscopes at accelerating voltages from 120 to 300 kV in the temperature range from -175 to 610 °C. The nanorod growth on the surface of MgO crystals was induced by Au, Pt, Ni, or Co particles of 2-4 nm in size. The nanorods were grown up to 8 nm after 5-30 min of electron irradiation time with beam current densities of 100-600 A/cm 2. The mechanism of nanorod formation and growth is explained on the basis of electrostatic interactions between positive ions of MgO species and negatively charged metal particles.

Original languageEnglish
Pages (from-to)414-417
Number of pages4
JournalCrystal Growth and Design
Volume10
Issue number1
DOIs
Publication statusPublished - 6 Jan 2010
Externally publishedYes

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