Impedance Spectroscopy of Perovskite Solar Cells With SnO₂ Embedding Graphene Nanoplatelets

Ilaria Matacena; Laura Lancellotti; Santolo Daliento; Brigida Alfano; Antonella De Maria; Vera La Ferrara; Lucia V. Mercaldo; Maria Lucia Miglietta; Tiziana Polichetti; Gabriella Rametta; Gennaro V. Sannino; Paola Delli Veneri; Pierluigi Guerriero

doi:10.1109/jphotov.2023.3301674

journal article·2023-11

Impedance Spectroscopy of Perovskite Solar Cells With SnO₂ Embedding Graphene Nanoplatelets

Ilaria Matacena, Laura Lancellotti, Santolo Daliento, Brigida Alfano, Antonella De Maria, Vera La Ferrara, Lucia V. Mercaldo, Maria Lucia Miglietta, Tiziana Polichetti, Gabriella Rametta, Gennaro V. Sannino, Paola Delli Veneri, Pierluigi Guerriero

IEEE Journal of Photovoltaics· Volume 13· Issue 6

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Source abstract

Abstract

Characterizing the electron transport layer (ETL)/perovskite interface in perovskite solar cells (PSCs) is of paramount importance for their overall performance. In this article the effect of different concentrations of graphene nanoplatelets in addition to SnO ₂ is investigated by considering degradation over time. PSCs behavior is monitored by collecting dark current–voltage curves as fabricated and after two months. A deeper insight is gained through impedance spectroscopy analysis. From Nyquist plots equivalent circuit models and the corresponding time constants are extracted. Moreover, resistive part of the impedance associated with high frequency has been related to static shunt resistance, assessing one of the considered ETL doping concentration as the more suitable choice to reduce degradation.

Source: openalex_inverted_index · Quality: candidate unverified · Source record ↗

Research context

Nanomaterials Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Chalcogenide Semiconductor Thin Films

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department Electrical Engineering and Information Technology, University of Naples “Federico II”, Naples, Italy

ENEA, Research Center Portici, Portici, Italy

Funding

MUR, Italy · CUP · Ministero della transizione ecologica

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