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Issue 7, 2012
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Infrared colloidal lead chalcogenide nanocrystals: Synthesis, properties, and photovoltaic applications

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Abstract

Simple solution phase, catalyst-free synthetic approaches that offer monodispersed, well passivated, and non-aggregated colloidal semiconductor nanocrystals have presented many research opportunities not only for fundamental science but also for technological applications. The ability to tune the electrical and optical properties of semiconductor nanocrystals by manipulating the size and shape of the crystals during the colloidal synthesis provides potential benefits to a variety of applications including photovoltaic devices, light-emitting diodes, field effect transistors, biological imaging/labeling, and more. Recent advances in the synthesis and characterization of colloidal lead chalcogenide nanocrystals and the achievements in colloidal PbS or PbSe nanocrystals solar cells have demonstrated the promising application of infrared-emitting colloidal lead chalcogenide nanocrystals in photovoltaic devices. Here, we review recent progress in the synthesis and optical properties of colloidal lead chalcogenide nanocrystals. We focus in particular upon the size- and shape-controlled synthesis of PbS, PbSe, and PbTe nanocrystals by using different precursors and various stabilizing surfactants for the growth of the colloidal nanocrystals. We also summarize recent advancements in the field of colloidal nanocrystals solar cells based on colloidal PbS and PbSe nanocrystals.

Graphical abstract: Infrared colloidal lead chalcogenide nanocrystals: Synthesis, properties, and photovoltaic applications

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Publication details

The article was received on 24 Nov 2011, accepted on 04 Jan 2012 and first published on 10 Jan 2012


Article type: Review Article
DOI: 10.1039/C2NR11836J
Citation: Nanoscale, 2012,4, 2187-2201
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    Infrared colloidal lead chalcogenide nanocrystals: Synthesis, properties, and photovoltaic applications

    H. Fu and S. Tsang, Nanoscale, 2012, 4, 2187
    DOI: 10.1039/C2NR11836J

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