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Nanomaterials 2019, 9(4), 582;

Rheological Tunability of Perovskite Precursor Solutions: From Spin Coating to Inkjet Printing Process

Dipartimento di Ingegneria dell’Innovazione, Università del Salento, via per Monteroni, km 1, 73100 Lecce, Italy
Istituto di Nanotecnologia CNR-Nanotec, Polo di Nanotecnologia, c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy
Centre for Additive Manufacturing, Faculty of Engineering, University of Nottingham, Nottingham NG8 1BB, UK
Future Manufacturing Processes Research Group, School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, UK
Dipartimento di Matematica e Fisica “E. De Giorgi”, Università del Salento, Via Arnesano snc, 73100 Lecce, Italy
Author to whom correspondence should be addressed.
Received: 14 March 2019 / Revised: 1 April 2019 / Accepted: 4 April 2019 / Published: 9 April 2019
(This article belongs to the Special Issue Perovskite Materials and Devices–– Progress and Challenges)
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The high efficiencies (>22%) reached by perovskite-based optoelectronic devices in a very short period, demonstrates the great potential and tunability of this material. The current challenge lies in translating such efficiencies to commercially feasible forms produced through industrial fabrication methods. Herein, a novel first step towards the processability of starch-perovskite inks, developed in our previous work, is investigated, by using inkjet printing technology. The tunability of the viscosity of the starch-perovskite-based inks allows the selection of suitable concentrations to be used as printable inks. After exploration of several printing parameters, thick and opaque starch-perovskite nanocomposite films were obtained, showing interesting morphological and optical properties. The results obtained in this work underline the potential and versatility of our approach, opening the possibility to explore and optimize, in the future, further large-scale deposition methods towards fully printed and stable perovskite devices. View Full-Text
Keywords: starch-perovskite inks; rheological tunability; inkjet printing starch-perovskite inks; rheological tunability; inkjet printing

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Giuri, A.; Saleh, E.; Listorti, A.; Colella, S.; Rizzo, A.; Tuck, C.; Esposito Corcione, C. Rheological Tunability of Perovskite Precursor Solutions: From Spin Coating to Inkjet Printing Process. Nanomaterials 2019, 9, 582.

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