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Issue 64, 2019
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Acetonitrile based single step slot-die compatible perovskite ink for flexible photovoltaics

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Abstract

The demonstration of photovoltaic devices with high power conversion efficiencies using low cost perovskite materials hints at the possibility of dramatically lowering the cost of solar energy. Key to further exploiting the potential of these materials is developing rapid processing techniques that can be used to deliver lower cost high throughput manufacture. This work details the development of low viscosity rapid drying perovskite formulations designed to give high quality solar films when slot-die coated on flexible roll-to-roll compatible substrates. A single step slot-die compatible perovskite ink based on an acetonitrile/methylamine solvent system utilizing a chloride additive is developed, resulting in large area perovskite films from slot-die coating under ambient conditions. The drying conditions for the perovskite film are optimized and fast (<10 min), low temperature (<120 °C) drying of slot-die coated films on flexible substrates are demonstrated and result in high performance devices.

Graphical abstract: Acetonitrile based single step slot-die compatible perovskite ink for flexible photovoltaics

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Supplementary files

Article information


Submitted
22 Aug 2019
Accepted
14 Oct 2019
First published
15 Nov 2019

This article is Open Access

RSC Adv., 2019,9, 37415-37423
Article type
Paper

Acetonitrile based single step slot-die compatible perovskite ink for flexible photovoltaics

D. Burkitt, R. Swartwout, J. McGettrick, P. Greenwood, D. Beynon, R. Brenes, V. Bulović and T. Watson, RSC Adv., 2019, 9, 37415
DOI: 10.1039/C9RA06631D

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
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    [Original citation] - Published by The Royal Society of Chemistry.

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