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Poly(3-dodecylthiophene)-grafted multi-walled carbon nanotubes: an additive for improving charge transport properties of triple cation perovskite solar cells

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Abstract

In this study, different percentages of multi-walled carbon nanotubes grafted with poly(3-dodecylthiophene) (MWCNT-g-PDDT) and pure MWCNT were used in Cs0.05FA0.79MA0.16PbI2.5Br0.5 triple cation perovskite active layer to survey the morphological, optical, and photovoltaic properties of the corresponding solar cell devices. Field emission scanning electron microscopy manifested smooth, dense, and pin-hole free surface by introducing MWCNT-g-PDDT into the perovskite active layer. MWCNT-g-PDDT additive boosted the photo-response of the perovskite layer in the visible wavelength range of 500–730 nm. Photoluminescence (PL) spectroscopy revealed a significant quenching effect; as a result of an effective charge extraction. High absorption coefficient and suppressed non-radiative recombination are responses for increased current density 19.40 mA cm−2. Furthermore, photovoltaic parameters of devices modified with MWCNT-g-PDDT additive exhibited improvement, due to a reduction in charge transfer resistance (Rct) and compact surface.

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Data availability

The datasets generated during the current study are available from the corresponding authors upon request.

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Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Authors and Affiliations

  1. Faculty of Sciences, Sahand University of Technology, Tabriz, Iran

    Samira Vafaei & Mohammad Hossein Hekmatshoar

  2. Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran

    Samira Vafaei & Farhang Abbasi

  3. Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, Iran

    Farhang Abbasi

Authors
  1. Samira Vafaei
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  2. Mohammad Hossein Hekmatshoar
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  3. Farhang Abbasi
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Contributions

All authors contributed to conceptualization. Material preparation, collection of data, analysis and manuscript drafting were performed by SV. FA contributed to editing. All authors read and approved the final manuscript.

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Correspondence to Farhang Abbasi.

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Vafaei, S., Hekmatshoar, M.H. & Abbasi, F. Poly(3-dodecylthiophene)-grafted multi-walled carbon nanotubes: an additive for improving charge transport properties of triple cation perovskite solar cells. J Mater Sci: Mater Electron 34, 1050 (2023). https://doi.org/10.1007/s10854-023-10449-z

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  • DOI: https://doi.org/10.1007/s10854-023-10449-z

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