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Developing colloidal nanoparticles for inkjet printing of devices with optical properties tuneable from the UV to the NIR

Austin, Jonathan S.; Xiao, Weitong; Wang, Feiran; Cottam, Nathan D.; Rivers, Geoffrey; Ward, Ellie B.; Luan, Weiling; Tuck, Christopher J.; Hague, Richard; Makarovsky, Oleg; Turyanska, Lyudmila; James, Tyler S.S.

Developing colloidal nanoparticles for inkjet printing of devices with optical properties tuneable from the UV to the NIR Thumbnail


Authors

Weitong Xiao

Profile image of FEIRAN WANG

FEIRAN WANG F.Wang@nottingham.ac.uk
Senior Research Fellow

Ellie B. Ward

Weiling Luan

CHRISTOPHER TUCK CHRISTOPHER.TUCK@NOTTINGHAM.AC.UK
Professor of Materials Engineering

RICHARD HAGUE RICHARD.HAGUE@NOTTINGHAM.AC.UK
Professor of Additive Manufacturing



Abstract

Colloidal low-dimensional photo-sensitive nanomaterials have attracted significant interest for optoelectronic device applications where inkjet printing offers a high accuracy and low waste route for their deposition on silicon-based, as well as flexible, devices. However, to achieve photodetection and displays with absorption and emission tuneable across the range from the ultraviolet (UV) to the near infrared (NIR), the availability of printable optically active materials needs to be addressed. In this work we develop printable ink formulations of graphene quantum dots (GQDs), NaYF4:(20%Yb and/or 2%Er doped) upconverting nanoparticles (UCNPs), and PbS quantum dots (QDs) and demonstrate their use in devices such as graphene-based photodetectors and fluorescent displays. The ink formulations, printing strategies and post-deposition techniques were developed and optimised to enable the deposition of photo-sensitive nanomaterial layers in a controllable manner onto flexible polymeric, glass and silicon substrates. The nanomaterials retained their properties post deposition, as we exemplify by photosensitisation of single layer graphene (SLG) photodetector devices, with spectral responsivity tuneable from the UV for GQD/SLG to the NIR for UCNP/SLG and PbS/SLG devices, with photoresponsivity up to R ∼ 103 A W−1. Fluorescent displays were also demonstrated consisting of CsPbBr3 perovskite nanocrystals and UCNPs inkjet printed onto flexible transparent substrates, for selective sensing of UV and NIR light. This work successfully expands the material library of printable optically active materials and demonstrates their potential for printed optoelectronics, including flexible devices.

Citation

Austin, J. S., Xiao, W., Wang, F., Cottam, N. D., Rivers, G., Ward, E. B., …James, T. S. (2024). Developing colloidal nanoparticles for inkjet printing of devices with optical properties tuneable from the UV to the NIR. Journal of Materials Chemistry C, https://doi.org/10.1039/D4TC01917B

Journal Article Type Article
Acceptance Date Jun 25, 2024
Online Publication Date Jun 27, 2024
Publication Date Jun 27, 2024
Deposit Date Jun 27, 2024
Publicly Available Date Jun 28, 2024
Journal Journal of Materials Chemistry C
Print ISSN 2050-7526
Electronic ISSN 2050-7534
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
DOI https://doi.org/10.1039/D4TC01917B
Public URL https://nottingham-repository.worktribe.com/output/36571302
Publisher URL https://pubs.rsc.org/en/Content/ArticleLanding/2024/TC/D4TC01917B

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