Journal article
Photoelectron spectroscopy investigations of recombination contacts for tandem organic solar cells
- Abstract:
- Recombination contacts play an important role in highly efficient organic tandem solar cells. We present a photoelectron spectroscopy study on contact systems that have previously been shown to work efficiently as recombination contacts. Here, the conversion of an electron current into a hole current is realized either by insertion of gold clusters or by a highly doped pn-junction. From the measured energy level alignments, we show that the working principles of these two approaches are significantly different. For gold clusters, the recombination current is promoted by an accumulation of charge carriers, while for doped pn-junctions, it is achieved by tunneling through a depletion layer. © 2012 American Institute of Physics.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 605.7KB, Terms of use)
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- Publisher copy:
- 10.1063/1.3693385
Authors
- Publisher:
- American Institute of Physics
- Journal:
- Applied Physics Letters More from this journal
- Volume:
- 100
- Issue:
- 11
- Article number:
- 113302
- Publication date:
- 2012-03-12
- DOI:
- ISSN:
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0003-6951
- Language:
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English
- Pubs id:
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pubs:405351
- UUID:
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uuid:161d31c3-ce9e-41ca-ae8d-a9bd43a47aac
- Local pid:
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pubs:405351
- Source identifiers:
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405351
- Deposit date:
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2013-09-26
Terms of use
- Copyright holder:
- American Institute of Physics
- Copyright date:
- 2012
- Notes:
- Copyright 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 100, 113302 (2012) and may be found at http://dx.doi.org/10.1063/1.3693385
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