Pathways toward 30% Efficient Single-Junction Perovskite Solar Cells and the Role of Mobile Ions

Diekmann J, Caprioglio P, Futscher MH, Le Corre VM, Reichert S, Jaiser F, Arvind M, Perdigón-Toro L, Gutierrez-Partida E, Peña-Camargo F, Deibel C, Ehrler B, Unold T, Kirchartz T, Neher D, Stolterfoht M (2021)

Publication Status: Published

Publication Type: Journal article

Publication year: 2021

Journal

Solar RRL Wiley-VCH

Publisher: WILEY-V C H VERLAG GMBH

Book Volume: 5

Article Number: ARTN 2100219

Journal Issue: 8

DOI: 10.1002/solr.202100219

Abstract

Perovskite semiconductors have demonstrated outstanding external luminescence quantum yields, enabling high power conversion efficiencies (PCEs). However, the precise conditions to advance to an efficiency regime above monocrystalline silicon cells are not well understood. Herein, a simulation model that describes efficient p-i-n-type perovskite solar cells well and a range of different experiments is established. Then, important device and material parameters are studied and it is found that an efficiency regime of 30% can be unlocked by optimizing the built-in voltage across the perovskite layer using either highly doped (10(19) cm(-3)) transport layers (TLs), doped interlayers or ultrathin self-assembled monolayers. Importantly, only parameters that have been reported in recent literature are considered, that is, a bulk lifetime of 10 mu s, interfacial recombination velocities of 10 cm s(-1), a perovskite bandgap (E-gap) of 1.5 eV, and an external quantum efficiency (EQE) of 95%. A maximum efficiency of 31% is predicted for a bandgap of 1.4 eV. Finally, it is demonstrated that the relatively high mobile ion density does not represent a significant barrier to reach this efficiency regime. The results of this study suggest continuous PCE improvements until perovskites may become the most efficient single-junction solar cell technology in the near future.

Authors with CRIS profile

Vincent Marc Le Corre Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

Universität Potsdam DE Germany (DE) Forschungszentrum Jülich / Research Centre Jülich (FZJ) DE Germany (DE) Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) DE Germany (DE)

How to cite

APA:

Diekmann, J., Caprioglio, P., Futscher, M.H., Le Corre, V.M., Reichert, S., Jaiser, F.,... Stolterfoht, M. (2021). Pathways toward 30% Efficient Single-Junction Perovskite Solar Cells and the Role of Mobile Ions. Solar RRL, 5(8). https://dx.doi.org/10.1002/solr.202100219

MLA:

Diekmann, Jonas, et al. "Pathways toward 30% Efficient Single-Junction Perovskite Solar Cells and the Role of Mobile Ions." Solar RRL 5.8 (2021).

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