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Size and bandgap tunability in Bi2S3colloidal nanocrystals and its effect in solution processed solar cells

Bernechea, Maria, Cao, Yiming and Konstantatos, Gerasimos 2015. Size and bandgap tunability in Bi2S3colloidal nanocrystals and its effect in solution processed solar cells. Journal of Materials Chemistry 3 (41) , p. 20642. 10.1039/C5TA04441C
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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.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: Royal Society of Chemistry
ISSN: 0959-9428
Date of First Compliant Deposit: 11 August 2016
Date of Acceptance: 27 August 2015
Last Modified: 12 Jun 2019 03:05
URI: http://orca-mwe.cf.ac.uk/id/eprint/93782

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