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Issue 41, 2015
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Size and bandgap tunability in Bi2S3 colloidal nanocrystals and its effect in solution processed solar cells

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Abstract

We report the synthesis and full characterization of colloidal Bi2S3 nanocrystals with different sizes, showing a band gap variation up to 0.2 eV and pointing to quantum confinement effects. Polymer–nanocrystal solar cells have been fabricated to study the effect of the size and band gap change on the performance of the devices. We have found that smaller nanocrystals present a much higher Voc, pointing to a system with a reduced density of surface traps.

Graphical abstract: Size and bandgap tunability in Bi2S3 colloidal nanocrystals and its effect in solution processed solar cells

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Publication details

The article was received on 17 Jun 2015, accepted on 27 Aug 2015 and first published on 31 Aug 2015


Article type: Paper
DOI: 10.1039/C5TA04441C
Author version available: Download Author version (PDF)
Citation: J. Mater. Chem. A, 2015,3, 20642-20648
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    Size and bandgap tunability in Bi2S3 colloidal nanocrystals and its effect in solution processed solar cells

    M. Bernechea, Y. Cao and G. Konstantatos, J. Mater. Chem. A, 2015, 3, 20642
    DOI: 10.1039/C5TA04441C

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