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Issue 11, 2018
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Influence of doped charge transport layers on efficient perovskite solar cells

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Abstract

Planar vacuum deposited p–i–n methyl ammonium lead tri-iodide perovskite solar cells are prepared with different electron and hole transporting layers, either doped or undoped. The effect of these layers on the solar cells performance (efficiency and stability) is studied. The main benefit of using doped layers lies in the formation of barrier free charge extraction contacts to the electrodes. However, this comes at the cost of increased residual absorption (reducing the current density and efficiency of the cells) and a decreased stability. A generic solar cell structure using undoped charge extraction layers is presented, containing a thin layer of a strong electron acceptor in between the transparent electrode and the hole transport layer, that leads to efficiencies of 18% and a significant (>5 times) improvement of the stability.

Graphical abstract: Influence of doped charge transport layers on efficient perovskite solar cells

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Publication details

The article was received on 11 May 2018, accepted on 03 Jul 2018 and first published on 03 Jul 2018


Article type: Paper
DOI: 10.1039/C8SE00218E
Citation: Sustainable Energy Fuels, 2018,2, 2429-2434
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    Influence of doped charge transport layers on efficient perovskite solar cells

    J. Avila, L. Gil-Escrig, P. P. Boix, M. Sessolo, S. Albrecht and H. J. Bolink, Sustainable Energy Fuels, 2018, 2, 2429
    DOI: 10.1039/C8SE00218E

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