Determination of lifetime of double-layer CuPc/C60 organic solar cells by optical electric-field-induced second-harmonic generation measurement

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Abstract

By using optical electric-field-induced second-harmonic generation measurement (EFISHG), we directly probed carrier transport processes in double-layer organic solar cells (OSCs). Results showed that excessive negative charges accumulated at the CuPc/C60 interface under photoillumination, and the accumulated charges decayed in a two-step process in dark. The EFISHG measurement is available for catching carrier process at the donor/acceptor interface of multi-layer OSCs to evaluate carrier lifetime of the cell. © 2010 Published by Elsevier B.V.

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Taguchi, D., Shino, T., Chen, X., Zhang, L., Li, J., Weis, M., … Iwamoto, M. (2011). Determination of lifetime of double-layer CuPc/C60 organic solar cells by optical electric-field-induced second-harmonic generation measurement. In Physics Procedia (Vol. 14, pp. 167–171). Elsevier B.V. https://doi.org/10.1016/j.phpro.2011.05.034

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