The influence of additives in the stoichiometry of hybrid lead halide perovskites

Ignasi Burgués-Ceballos; Achilleas Savva; Efthymios Georgiou; Konstantinos Kapnisis; Paris Papagiorgis; Androniki Mousikou; Grigorios Itskos; Andreas Othonos; Stelios A. Choulis

doi:10.1063/1.5010261

AIP Advances (Nov 2017)

The influence of additives in the stoichiometry of hybrid lead halide perovskites

Ignasi Burgués-Ceballos,
Achilleas Savva,
Efthymios Georgiou,
Konstantinos Kapnisis,
Paris Papagiorgis,
Androniki Mousikou,
Grigorios Itskos,
Andreas Othonos,
Stelios A. Choulis

Affiliations

Ignasi Burgués-Ceballos: Molecular Electronics and Photonics Research Unit, Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, 45 Kitiou Kyprianou Street, Limassol 3041, Cyprus
Achilleas Savva: Molecular Electronics and Photonics Research Unit, Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, 45 Kitiou Kyprianou Street, Limassol 3041, Cyprus
Efthymios Georgiou: Molecular Electronics and Photonics Research Unit, Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, 45 Kitiou Kyprianou Street, Limassol 3041, Cyprus
Konstantinos Kapnisis: Molecular Electronics and Photonics Research Unit, Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, 45 Kitiou Kyprianou Street, Limassol 3041, Cyprus
Paris Papagiorgis: Experimental Condensed Matter Physics Laboratory, Department of Physics, University of Cyprus, Nicosia 1678, Cyprus
Androniki Mousikou: Experimental Condensed Matter Physics Laboratory, Department of Physics, University of Cyprus, Nicosia 1678, Cyprus
Grigorios Itskos: Experimental Condensed Matter Physics Laboratory, Department of Physics, University of Cyprus, Nicosia 1678, Cyprus
Andreas Othonos: Laboratory of Ultrafast Science, Department of Physics, University of Cyprus, Nicosia 1678, Cyprus
Stelios A. Choulis: Molecular Electronics and Photonics Research Unit, Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, 45 Kitiou Kyprianou Street, Limassol 3041, Cyprus

DOI: https://doi.org/10.1063/1.5010261
Journal volume & issue: Vol. 7, no. 11
pp. 115304 – 115304-6

Abstract

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We investigate the employment of carefully selected solvent additives in the processing of a commercial perovskite precursor ink and analyze their impact on the performance of organometal trihalide perovskite (CH3NH3PbI3−xClx) photovoltaic devices. We provide evidence that the use of benzaldehyde can be used as an effective method to preserve the stoichiometry of the perovskite precursors in solution. Benzaldehyde based additive engineering shows to improve perovskite solid state film morphology and device performance of CH3NH3PbI3−xClx based solar cells.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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