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Electroabsorption studies of organic p-i-n solar cells: Evaluating the built-in voltage

Abstract:
We investigate the built-in voltage in organic bulk heterojunction solar cells using electroabsorption spectroscopy based on the Stark effect, i.e. the variation of the absorption energies of a material caused by an electric field. Due to spectral contributions of permanent dipoles, a novel approach for evaluating the EA spectra is required. We use a fitting routine analyzing a broad spectral range instead of using only a single wavelength. A reliable quantitative determination of the built-in voltage is achieved. Copyright © Materials Research Society 2014.

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Publisher copy:
10.1557/opl.2014.50

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author


Publisher:
Materials Research Society
Journal:
Materials Research Society Symposium Proceedings More from this journal
Volume:
1639
Publication date:
2014-01-01
DOI:
EISSN:
1946-4274
ISSN:
0272-9172


Language:
English
Keywords:
Pubs id:
pubs:464736
UUID:
uuid:dae02168-803c-44c6-a519-4962731625ac
Local pid:
pubs:464736
Source identifiers:
464736
Deposit date:
2014-06-19

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