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Portrait of Reine Wallenberg. Photo: Kennet Ruona

Reine Wallenberg

Professor, Coordinator Materials Science

Portrait of Reine Wallenberg. Photo: Kennet Ruona

Observing growth under confinement : Sn nanopillars in porous alumina templates

Author

  • Gary S. Harlow
  • Jakub Drnec
  • Tim Wiegmann
  • Weronica Lipé
  • Jonas Evertsson
  • Axel R. Persson
  • Reine Wallenberg
  • Edvin Lundgren
  • Nikolay A. Vinogradov

Summary, in English

Using a micro-focused high-energy X-ray beam, we have performed in situ time-resolved depth profiling during the electrochemical deposition of Sn into an ordered porous anodic alumina template. Combined with micro-diffraction we are able to follow the variation of the structure at the atomic scale as a function of depth and time. We show that Sn initially deposits at the bottom of the pores, and forms metallic nanopillars with a preferred [100] orientation and a relatively low mosaicity. The lattice strain is found to differ from previous ex situ measurements where the Sn had been removed from the porous support. The dendritic nature of the pore bottom affects the Sn growth mode and results in a variation of Sn grain size, strain and mosaicity. Such atomic scale information of nano-templated materials during electrodeposition may improve the future fabrication of devices.

Department/s

  • Synchrotron Radiation Research
  • NanoLund
  • MAX IV Laboratory

Publishing year

2019-10-29

Language

English

Pages

4764-4771

Publication/Series

Nanoscale Advances

Volume

1

Issue

12

Document type

Journal article

Publisher

Royal Society of Chemistry

Topic

  • Materials Chemistry
  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 2516-0230