A room temperature light source based on silicon nanowires

We synthesized ultrathin Si nanowires (NWs) by metal assisted chemical wet etching, using a very thin discontinuous Au layer as precursor for the process. A bright room temperature emission in the visible range due to electron–hole recombination in quantum confined Si NWs is reported. A single walle...

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Veröffentlicht in:Thin solid films 2016-08, Vol.613, p.59-63
Hauptverfasser: Lo Faro, M.J., D'Andrea, C., Messina, E., Fazio, B., Musumeci, P., Franzò, G., Gucciardi, P.G., Vasi, C., Priolo, F., Iacona, F., Irrera, A.
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container_issue
container_start_page 59
container_title Thin solid films
container_volume 613
creator Lo Faro, M.J.
D'Andrea, C.
Messina, E.
Fazio, B.
Musumeci, P.
Franzò, G.
Gucciardi, P.G.
Vasi, C.
Priolo, F.
Iacona, F.
Irrera, A.
description We synthesized ultrathin Si nanowires (NWs) by metal assisted chemical wet etching, using a very thin discontinuous Au layer as precursor for the process. A bright room temperature emission in the visible range due to electron–hole recombination in quantum confined Si NWs is reported. A single walled carbon nanotube (CNT) suspension was prepared and dispersed in Si NW samples. The hybrid Si NW/CNT system exhibits a double emission at room temperature, both in the visible (due to Si NWs) and the IR (due to CNTs) range, thus demonstrating the realization of a low-cost material with promising perspectives for applications in Si-based photonics. •Synthesis of ultrathin Si nanowires (NWs) by metal-assisted chemical etching•Synthesis of NW/carbon nanotube (CNT) hybrid systems•Structural characterization of Si NWs and Si NW/CNT•Room temperature photoluminescence (PL) properties of Si NWs and of Si NW/CNT•Tuning of the PL properties of the Si NW/CNT hybrid system
doi_str_mv 10.1016/j.tsf.2015.11.028
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subjects Bright tempering
Carbon nanotubes
Emission
Metal assisted chemical etching
Multiwavelength light source
Nanowires
Precursors
Room temperature photoluminescence
Silicon
Silicon nanowires
Single wall carbon nanotubes
Thin films
title A room temperature light source based on silicon nanowires
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