Charge carrier transport and recombination in bulk-heterojunction solar-cells

A. Pivrikas; G. Juska; K. Arlauskas; M. Scharber; A. Mozer; N.S. Sariciftci; H. Stubb; R. Österbacka

doi:10.1117/12.614864

3 October 2005 Charge carrier transport and recombination in bulk-heterojunction solar-cells

A. Pivrikas, G. Juska, K. Arlauskas, M. Scharber, A. Mozer, N.S. Sariciftci, H. Stubb, R. Österbacka

Proceedings Volume 5938, Organic Photovoltaics VI; 59380N (2005) https://doi.org/10.1117/12.614864
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

A. Pivrikas, G. Juska, K. Arlauskas, M. Scharber, A. Mozer, N.S. Sariciftci, H. Stubb, and R. Österbacka "Charge carrier transport and recombination in bulk-heterojunction solar-cells", Proc. SPIE 5938, Organic Photovoltaics VI, 59380N (3 October 2005); https://doi.org/10.1117/12.614864

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