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Impedance Spectroscopy Analysis of Perovskite Solar Cell Stability

Author

Listed:
  • Ilaria Matacena

    (Department of Electrical Engineering and Information Technology, University of Naples Federico II, 80125 Naples, Italy)

  • Pierluigi Guerriero

    (Department of Electrical Engineering and Information Technology, University of Naples Federico II, 80125 Naples, Italy)

  • Laura Lancellotti

    (ENEA Portici Research Center, 80055 Portici, Italy)

  • Brigida Alfano

    (ENEA Portici Research Center, 80055 Portici, Italy)

  • Antonella De Maria

    (ENEA Portici Research Center, 80055 Portici, Italy)

  • Vera La Ferrara

    (ENEA Portici Research Center, 80055 Portici, Italy)

  • Lucia V. Mercaldo

    (ENEA Portici Research Center, 80055 Portici, Italy)

  • Maria Lucia Miglietta

    (ENEA Portici Research Center, 80055 Portici, Italy)

  • Tiziana Polichetti

    (ENEA Portici Research Center, 80055 Portici, Italy)

  • Gabriella Rametta

    (ENEA Portici Research Center, 80055 Portici, Italy)

  • Gennaro V. Sannino

    (ENEA Portici Research Center, 80055 Portici, Italy)

  • Paola Delli Veneri

    (ENEA Portici Research Center, 80055 Portici, Italy)

  • Santolo Daliento

    (Department of Electrical Engineering and Information Technology, University of Naples Federico II, 80125 Naples, Italy)

Abstract

The aim of this work is to investigate the degradation of perovskite solar cells (PSCs) by means of impedance spectroscopy, a highly sensitive characterization technique used to establish the electrical response of a device in a nondestructive manner. In this paper, PSCs with two different electron transport layers (ETLs) are studied: PSCs with undoped SnO 2 as an ETL are compared to PSCs with an ETL composed of graphene-doped SnO 2 (G-SnO 2 ). Experimental data were collected immediately after fabrication and after one week, monitoring both impedance spectroscopy and dark current-voltage (I-V) curves. It was observed that, in the case of the undoped PSCs, the degradation of the solar cells affected both the AC behavior of the devices, modifying the associated Nyquist plots, and the DC behavior, observable from the dark I-V measurements. Conversely, the solar cells with G-SnO 2 showed no variation. Considering the Nyquist plots, a quantitative analysis was performed by comparing the parameters of a proper equivalent circuit model. The results were coherent with those achieved in the DC analysis, thus proving that the analysis of impedance spectra, supported with dark I-V curves, allows one to gain a deeper knowledge of the degradation phenomena of perovskite solar cells. This study opens the door for further improvement of these devices through a better understanding of their electrical behavior.

Suggested Citation

  • Ilaria Matacena & Pierluigi Guerriero & Laura Lancellotti & Brigida Alfano & Antonella De Maria & Vera La Ferrara & Lucia V. Mercaldo & Maria Lucia Miglietta & Tiziana Polichetti & Gabriella Rametta &, 2023. "Impedance Spectroscopy Analysis of Perovskite Solar Cell Stability," Energies, MDPI, vol. 16(13), pages 1-10, June.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:13:p:4951-:d:1179598
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    References listed on IDEAS

    as
    1. Xinchen Dai & Pramod Koshy & Charles Christopher Sorrell & Jongchul Lim & Jae Sung Yun, 2020. "Focussed Review of Utilization of Graphene-Based Materials in Electron Transport Layer in Halide Perovskite Solar Cells: Materials-Based Issues," Energies, MDPI, vol. 13(23), pages 1-24, December.
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