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Proceedings Paper

Charge carrier transport and recombination in bulk-heterojunction solar-cells
Author(s): A. Pivrikas; G. Juska; K. Arlauskas; M. Scharber; A. Mozer; N.S. Sariciftci; H. Stubb; R. Österbacka
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Paper Abstract

We have measured charge carrier transport and recombination in bulk-heterojunction solar-cells. Time-of-flight, carrier extraction by linearly increasing voltage and double injection techniques which are complementary to each other have been used to study the solar-cells of different thicknesses and conductivities. We show the importance of carrier mobility and bimolecular recombination coefficient for testing the suitability of materials in bulk-heterojunction solar-cells. The reduced bimolecular recombination coefficient at zero electric field and its electric field dependence are measured directly. The bimolecular recombination coefficient and Langevin-type coefficient values β/βL ≈ 10-4 are in the good agreement when measured with presented techniques.

Paper Details

Date Published: 3 October 2005
PDF: 11 pages
Proc. SPIE 5938, Organic Photovoltaics VI, 59380N (3 October 2005); doi: 10.1117/12.614864
Show Author Affiliations
A. Pivrikas, Åbo Akademi Univ. (Finland)
Univ. of Turku (Finland)
G. Juska, Vilnius Univ. (Lithuania)
K. Arlauskas, Vilnius Univ. (Lithuania)
M. Scharber, Konarka Austria (Austria)
A. Mozer, Johannes Kepler Univ. (Austria)
N.S. Sariciftci, Johannes Kepler Univ. (Austria)
H. Stubb, Åbo Akademi Univ. (Finland)
R. Österbacka, Åbo Akademi Univ. (Finland)


Published in SPIE Proceedings Vol. 5938:
Organic Photovoltaics VI
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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