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Article

Correlation between CdSe QD Synthesis, Post-Synthetic Treatment, and BHJ Hybrid Solar Cell Performance

1
Department of Microsystems Engineering (IMTEK), University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany
2
Department of Physics, Carl von Ossietzky University of Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129 Oldenburg, Germany
*
Author to whom correspondence should be addressed.
Academic Editors: Guanying Chen, Zhijun Ning and Hans Agren
Nanomaterials 2016, 6(6), 115; https://doi.org/10.3390/nano6060115
Received: 20 April 2016 / Revised: 1 June 2016 / Accepted: 6 June 2016 / Published: 14 June 2016
(This article belongs to the Special Issue Nanostructured Solar Cells)
In this publication we show that the procedure to synthesize nanocrystals and the post-synthetic nanocrystal ligand sphere treatment have a great influence not only on the immediate performance of hybrid bulk heterojunction solar cells, but also on their thermal, long-term, and air stability. We herein demonstrate this for the particular case of spherical CdSe nanocrystals, post-synthetically treated with a hexanoic acid based treatment. We observe an influence from the duration of this post-synthetic treatment on the nanocrystal ligand sphere size, and also on the solar cell performance. By tuning the post-synthetic treatment to a certain degree, optimal device performance can be achieved. Moreover, we show how to effectively adapt the post-synthetic nanocrystal treatment protocol to different nanocrystal synthesis batches, hence increasing the reproducibility of hybrid nanocrystal:polymer bulk-heterojunction solar cells, which usually suffers due to the fluctuations in nanocrystal quality of different synthesis batches and synthesis procedures. View Full-Text
Keywords: bulk heterojunction solar cells; hybrid solar cells; nanocrystals; quantum dots; conjugated polymers; post-synthetic treatment; thermal annealing; long-term stability bulk heterojunction solar cells; hybrid solar cells; nanocrystals; quantum dots; conjugated polymers; post-synthetic treatment; thermal annealing; long-term stability
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MDPI and ACS Style

Eck, M.; Krueger, M. Correlation between CdSe QD Synthesis, Post-Synthetic Treatment, and BHJ Hybrid Solar Cell Performance. Nanomaterials 2016, 6, 115. https://doi.org/10.3390/nano6060115

AMA Style

Eck M, Krueger M. Correlation between CdSe QD Synthesis, Post-Synthetic Treatment, and BHJ Hybrid Solar Cell Performance. Nanomaterials. 2016; 6(6):115. https://doi.org/10.3390/nano6060115

Chicago/Turabian Style

Eck, Michael; Krueger, Michael. 2016. "Correlation between CdSe QD Synthesis, Post-Synthetic Treatment, and BHJ Hybrid Solar Cell Performance" Nanomaterials 6, no. 6: 115. https://doi.org/10.3390/nano6060115

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