Author:
Siebert-Henze Ellen,Lyssenko Vadim G.,Brückner Robert,Riede Moritz,Leo Karl
Abstract
ABSTRACTWe 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.
Publisher
Springer Science and Business Media LLC
Cited by
2 articles.
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