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Photosensitisation of inkjet printed graphene with stable all-inorganic perovskite nanocrystals

Austin, Jonathan S.; Cottam, Nathan D.; Zhang, Chengxi; Wang, Feiran; Gosling, Jonathan H.; Nelson-Dummet, Oliver; James, Tyler S.S.; Beton, Peter H.; Trindade, Gustavo F.; Zhou, Yundong; Tuck, Christopher J.; Hague, Richard; Makarovsky, Oleg; Turyanska, Lyudmila

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Jonathan S. Austin

Chengxi Zhang

Jonathan H. Gosling

Oliver Nelson-Dummet

Tyler S.S. James

Professor of Physics

Gustavo F. Trindade

Yundong Zhou

Professor of Materials Engineering

Professor of Additive Manufacturing


All-inorganic perovskite nanocrystals (NCs) with enhanced environmental stability are of particular interest for optoelectronic applications. Here we report on the formulation of CsPbX3 (X is Br or I) inks for inkjet deposition and utilise these NCs as photosensitive layers in graphene photodetectors, including those based on single layer graphene (SLG) as well as inkjet-printed graphene (iGr) devices. The performance of these photodetectors strongly depends on the device structure, geometry and the fabrication process. We achieve a high photoresponsivity, R > 106 A W-1 in the visible wavelength range and a spectral response controlled by the halide content of the perovskite NC ink. By utilising perovskite NCs, iGr and gold nanoparticle inks, we demonstrate a fully inkjet-printed photodetector with R ≈ 20 A W-1, which is the highest value reported to date for this type of device. The performance of the perovskite/graphene photodetectors is explained by transfer of photo-generated charge carriers from the perovskite NCs into graphene and charge transport through the iGr network. The perovskite ink developed here enabled realisation of stable and sensitive graphene-based photon detectors. Compatibility of inkjet deposition with conventional Si-technologies and with flexible substrates combined with high degree of design freedom provided by inkjet deposition offers opportunities for partially and fully printed optoelectronic devices for applications ranging from electronics to environmental sciences.


Austin, J. S., Cottam, N. D., Zhang, C., Wang, F., Gosling, J. H., Nelson-Dummet, O., …Turyanska, L. (2023). Photosensitisation of inkjet printed graphene with stable all-inorganic perovskite nanocrystals. Nanoscale, 15(5), 2134–2142.

Journal Article Type Article
Acceptance Date Dec 19, 2022
Online Publication Date Dec 23, 2022
Publication Date Feb 7, 2023
Deposit Date Jan 18, 2023
Publicly Available Date Jan 18, 2023
Journal Nanoscale
Print ISSN 2040-3364
Electronic ISSN 2040-3372
Publisher Royal Society of Chemistry (RSC)
Peer Reviewed Peer Reviewed
Volume 15
Issue 5
Pages 2134–2142
Keywords General Materials Science
Public URL
Publisher URL


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