Monocrystalline Nanopatterns Made by Nanocube Assembly and Epitaxy

Beniamino Sciacca, Annemarie Berkhout, Benjamin J.M. Brenny, Sebastian Z. Oener, Marijn A. van Huis, Albert Polman, Erik C. Garnett

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Abstract

Monocrystalline materials are essential for optoelectronic devices such as solar cells, LEDs, lasers, and transistors to reach the highest performance. Advances in synthetic chemistry now allow for high quality monocrystalline nanomaterials to be grown at low temperature in solution for many materials; however, the realization of extended structures with control over the final 3D geometry still remains elusive. Here, a new paradigm is presented, which relies on epitaxy between monocrystalline nanocube building blocks. The nanocubes are assembled in a predefined pattern and then epitaxially connected at the atomic level by chemical growth in solution, to form monocrystalline nanopatterns on arbitrary substrates. As a first demonstration, it is shown that monocrystalline silver structures obtained with such a process have optical properties and conductivity comparable to single-crystalline silver. This flexible multiscale process may ultimately enable the implementation of monocrystalline materials in optoelectronic devices, raising performance to the ultimate limit.

Original languageEnglish
Article number1701064
JournalAdvanced Materials
Volume29
Issue number26
DOIs
Publication statusPublished - 12 Jul 2017

Keywords

  • chemical welding
  • monocrystalline nanopatterns
  • nanocube assemblies
  • silver nanostructures
  • solution phase homoepitaxy

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