Determination of Lifetime of Double-Layer CuPc/C60 Organic Solar Cells by Optical Electric-Field-Induced Second-Harmonic Generation Measurement

Dai Taguchi,Tatsunori Shino,Xiangyu Chen,Le Zhang,Jun Li,Martin Weis,Takaaki Manaka,Mitsumasa Iwamoto

doi:10.1016/j.phpro.2011.05.034

Determination of Lifetime of Double-Layer CuPc/C60 Organic Solar Cells by Optical Electric-Field-Induced Second-Harmonic Generation Measurement

Dai Taguchi, Tatsunori Shino + Show 6 more

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https://doi.org/10.1016/j.phpro.2011.05.034

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Journal: Physics Procedia	Publication Date: Jan 1, 2011
License type: cc-by-nc-nd

Affiliation: Tokyo Institute of Technology, Slovak Academy of Sciences

#Second-Harmonic Generation Measurement #Organic Solar Cells + Show 8 more

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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.

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