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Issue 47, 2017
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Zero-dimensional methylammonium iodo bismuthate solar cells and synergistic interactions with silicon nanocrystals

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Abstract

Organometal trihalide perovskite solar cells have attracted monumental attention in recent years. Today's best devices, based on a three-dimensional perovskite structure of corner-sharing PbI6 octahedra, are unstable, toxic, and display hysteresis in current–voltage measurements. We present zero-dimensional organic–inorganic hybrid solar cells based on methylammonium iodo bismuthate (CH3NH3)3(Bi2I9) (MABI) comprising a Bi2I9 bioctahedra and observe very low hysteresis for scan rates in the broad range of 150 mV s−1 to 1500 mV s−1 without any interfacial layer engineering. We confirm good stability for devices produced and stored in open air without humidity control. The MABI structure can also accommodate silicon nanocrystals, leading to an enhancement in the short-circuit current. Through the material MABI, we demonstrate a promising alternative to the organometal trihalide perovskite class and present a model material for future composite third-generation photovoltaics.

Graphical abstract: Zero-dimensional methylammonium iodo bismuthate solar cells and synergistic interactions with silicon nanocrystals

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Publication details

The article was received on 04 Aug 2017, accepted on 15 Nov 2017 and first published on 23 Nov 2017


Article type: Paper
DOI: 10.1039/C7NR05764D
Citation: Nanoscale, 2017,9, 18759-18771
  • Open access: Creative Commons BY license
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    Zero-dimensional methylammonium iodo bismuthate solar cells and synergistic interactions with silicon nanocrystals

    C. McDonald, C. Ni, V. Švrček, M. Lozac'h, P. A. Connor, P. Maguire, J. T. S. Irvine and D. Mariotti, Nanoscale, 2017, 9, 18759
    DOI: 10.1039/C7NR05764D

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