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

McDonald, Calum, Ni, Chengsheng, Svrcek, Vladimir, Lozac'h, Mickael, Connor, Paul A., Maguire, Paul, Irvine, John T. S. and Mariotti, D (2017) Zero-dimensional methylammonium iodo bismuthate solar cells and synergistic interactions with silicon nanocrystals. Nanoscale, 47 . pp. 18759-18771. [Journal article]

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URL: http://dx.doi.org/10.1039/C7NR05764D

DOI: 10.1039/C7NR05764D

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.

Item Type:Journal article
Keywords:perovskite, solar cell, nanocrystals
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:39456
Deposited By: Professor Davide Mariotti
Deposited On:28 Feb 2018 17:26
Last Modified:28 Feb 2018 17:26

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