Publikation:

Metallophthalocyanines in a ternary photoactive layer (P3HT:MPc:PC70BM) for bulk heterojunction solar cells

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2020

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Gounden, Denisha
Pillay, Michael N.
Nombona, Nolwazi
van Zyl, Werner Ewald

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http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1pt3qwh3r9nr4
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https://doi.org/10.1039/D0MA00725K
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Attribution 3.0 Unported

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Physik: Publikationen
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Published

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Materials Advances. Royal Society of Chemistry (RSC). 2020, 1(8), pp. 3058-3072. eISSN 2633-5409. Available under: doi: 10.1039/D0MA00725K

Zusammenfassung

Novel bulk heterojunction (BHJ) organic photovoltaic (OPV) solar cells have been fabricated by introducing a series of metallophthalocyanines (MPcs) into a blend of a poly(3-hexylthiophene-2,5-diyl) (P3HT) and [6,6]-phenyl C70 butyric acid methyl ester (PC70BM) photoactive layer. Sixteen MPcs have been synthesised with due consideration of the metal type and valency, functionalised ligand moieties and their respective molecular energy levels. The MPcs were expected to act as an electron cascade material that improves photovoltaic performance in a two-fold manner. Firstly, to provide an efficient energy level offset between the polymeric donor (P3HT) and the fullerene-based derivative acceptor (PC70BM) to enhance charge transfer and reduce recombination within the OPV solar cells. Secondly, to harvest a greater portion of the solar spectrum as MPcs are associated with absorption near the near-infrared region. The BHJ OSCs were fabricated in the following inverted configuration: ITO/TiO2/P3HT:MPc:PC70BM/WO3/Ag and were investigated for their optimum photovoltaic performance. The BHJ OSCs comprising of P3HT, PC70BM and the manganese MPc (MnPc) series photoactive layer displayed the best PCEs ranging between 2.36 – 2.62% which were approximately 47.5 - 63.7% higher than the binary reference BHJ OSCs.

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530 Physik

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ISO 690GOUNDEN, Denisha, Michael N. PILLAY, Nolwazi NOMBONA, Lukas SCHMIDT-MENDE, Werner Ewald VAN ZYL, 2020. Metallophthalocyanines in a ternary photoactive layer (P3HT:MPc:PC70BM) for bulk heterojunction solar cells. In: Materials Advances. Royal Society of Chemistry (RSC). 2020, 1(8), pp. 3058-3072. eISSN 2633-5409. Available under: doi: 10.1039/D0MA00725K
BibTex
@article{Gounden2020Metal-51530,
  year={2020},
  doi={10.1039/D0MA00725K},
  title={Metallophthalocyanines in a ternary photoactive layer (P3HT:MPc:PC70BM) for bulk heterojunction solar cells},
  number={8},
  volume={1},
  journal={Materials Advances},
  pages={3058--3072},
  author={Gounden, Denisha and Pillay, Michael N. and Nombona, Nolwazi and Schmidt-Mende, Lukas and van Zyl, Werner Ewald}
}
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    <dcterms:abstract xml:lang="eng">Novel bulk heterojunction (BHJ) organic photovoltaic (OPV) solar cells have been fabricated by introducing a series of metallophthalocyanines (MPcs) into a blend of a poly(3-hexylthiophene-2,5-diyl) (P3HT) and [6,6]-phenyl C70 butyric acid methyl ester (PC70BM) photoactive layer. Sixteen MPcs have been synthesised with due consideration of the metal type and valency, functionalised ligand moieties and their respective molecular energy levels. The MPcs were expected to act as an electron cascade material that improves photovoltaic performance in a two-fold manner. Firstly, to provide an efficient energy level offset between the polymeric donor (P3HT) and the fullerene-based derivative acceptor (PC70BM) to enhance charge transfer and reduce recombination within the OPV solar cells. Secondly, to harvest a greater portion of the solar spectrum as MPcs are associated with absorption near the near-infrared region. The BHJ OSCs were fabricated in the following inverted configuration: ITO/TiO2/P3HT:MPc:PC70BM/WO3/Ag and were investigated for their optimum photovoltaic performance. The BHJ OSCs comprising of P3HT, PC70BM and the manganese MPc (MnPc) series photoactive layer displayed the best PCEs ranging between 2.36 – 2.62% which were approximately 47.5 - 63.7% higher than the binary reference BHJ OSCs.</dcterms:abstract>
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