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Issue 17, 2014
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Hybrid inorganic–organic tandem solar cells for broad absorption of the solar spectrum

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Abstract

We report the first hybrid tandem solar cell with solution processable active layers using colloidal PbS quantum dots (QDs) as the front subcell in combination with a polymer–fullerene rear subcell. Al/WO3 is introduced as an interlayer, yielding an open circuit voltage (VOC) equal to about 92% of the sum of the VOC of the subcells. The device exhibits a power conversion efficiency of 1.8%. Optical simulations of various tandem configurations show that combining PbS QDs with small-bandgap polymers is a promising strategy to obtain tandem solar cells with a very broad absorption range and a high short circuit current.

Graphical abstract: Hybrid inorganic–organic tandem solar cells for broad absorption of the solar spectrum

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Supplementary files

Article information


Submitted
26 Feb 2014
Accepted
13 Mar 2014
First published
13 Mar 2014

Phys. Chem. Chem. Phys., 2014,16, 7672-7676
Article type
Communication
Author version available

Hybrid inorganic–organic tandem solar cells for broad absorption of the solar spectrum

M. J. Speirs, B. G. H. M. Groeneveld, L. Protesescu, C. Piliego, M. V. Kovalenko and M. A. Loi, Phys. Chem. Chem. Phys., 2014, 16, 7672
DOI: 10.1039/C4CP00846D

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