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Issue 17, 2018
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Pulse laser-induced size-controllable and symmetrical ordering of single-crystal Si islands

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Abstract

Optically electric- and magnetic resonance-induced dielectric nanostructures have garnered significant attention due to applications as tunable electronic and optoelectronic device. In this letter, we describe an ultrafast and large-area method to construct symmetrical and single-crystal Si island structures directly on Si substrates by a pulse laser dewetting method. The tunable surface electric field intensity distribution could convert the stochastic dewetting process into a deterministic process (classical dipole mode and Mie resonance dipole mode) on predefined Si pit arrays via laser dewetting. Under this condition, these pre-patterned Si substrate structures not only induced high spatial ordering of islands, but also improved their size uniformity. By adjusting the laser fluence, the diameter of the single-crystal Si islands could be selected in the range 41.7–147.1 nm.

Graphical abstract: Pulse laser-induced size-controllable and symmetrical ordering of single-crystal Si islands

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Publication details

The article was received on 09 Jan 2018, accepted on 03 Apr 2018 and first published on 03 Apr 2018


Article type: Paper
DOI: 10.1039/C8NR00210J
Citation: Nanoscale, 2018,10, 8133-8138
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    Pulse laser-induced size-controllable and symmetrical ordering of single-crystal Si islands

    D. Qi, S. Tang, L. Wang, S. Dai, X. Shen, C. Wang and S. Chen, Nanoscale, 2018, 10, 8133
    DOI: 10.1039/C8NR00210J

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