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Issue 39, 2017
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Long-lived luminescence of silicon nanocrystals: from principles to applications

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Abstract

Silicon nanocrystals (SiNCs) synthesized by plasma-induced or high temperature processes (e.g., thermal disproportionation of hydrogen silsesquioxane at T > 1100 °C) display bright (photoluminescence quantum yield up to 70%) and long-lived luminescence (hundreds of μs), which can be tuned from green to red and near-infra-red spectral regions according to nanocrystal dimensions. The present review focuses on the parameters affecting the optical properties of these SiNCs, namely size, shape, surface, degree of crystallinity, and on a method to increase their brightness by functionalising SiNCs with dyes to build up a light-harvesting antenna. The final discussion presents some of the most recent examples of applications, which take advantage of the luminescence properties of SiNCs: energy conversion devices, sensors, and bioimaging probes.

Graphical abstract: Long-lived luminescence of silicon nanocrystals: from principles to applications

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Publication details

The article was received on 01 Aug 2017, accepted on 11 Sep 2017 and first published on 28 Sep 2017


Article type: Perspective
DOI: 10.1039/C7CP05208A
Citation: Phys. Chem. Chem. Phys., 2017,19, 26507-26526
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    Long-lived luminescence of silicon nanocrystals: from principles to applications

    R. Mazzaro, F. Romano and P. Ceroni, Phys. Chem. Chem. Phys., 2017, 19, 26507
    DOI: 10.1039/C7CP05208A

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