Mixed Small-Molecule Matrices Improve Nanoparticle Dispersibility in Organic Semiconductor-Nanoparticle Films

Toolan, Daniel T. W.; Weir, Michael P.; Kilbride, Rachel C.; Anthony, John E.; Greenham, Neil C.; Friend, Richard H.; Rao, Akshay; Mykhaylyk, Oleksandr O.; Jones, Richard A. L.; Ryan, Anthony J.

Abstract

Controlling the dispersibility of nanocrystalline inorganic quantum dots (QDs) within organic semiconductor (OSC):QD nanocomposite films is critical for a wide range of optoelectronic devices. This work demonstrates how small changes to the OSC host molecule can have a dramatic detrimental effect on QD dispersibility within the host organic semiconductor matrix as quantified by grazing incidence X-ray scattering. It is commonplace to modify QD surface chemistry to enhance QD dispersibility within an OSC host. Here, an alternative route toward optimizing QD dispersibilities is demonstrated, which dramatically improves QD dispersibilities through blending two different OSCs to form a fully mixed OSC matrix phase.

Citation

Toolan, D. T. W., Weir, M. P., Kilbride, R. C., Anthony, J. E., Greenham, N. C., Friend, R. H., …Ryan, A. J. (2023). Mixed Small-Molecule Matrices Improve Nanoparticle Dispersibility in Organic Semiconductor-Nanoparticle Films. Langmuir, 39(13), 4799-4808. https://doi.org/10.1021/acs.langmuir.3c00152

• Journal Article Type: Article
• Acceptance Date: Mar 20, 2023
• Online Publication Date: Mar 20, 2023
• Publication Date: Apr 4, 2023
• Deposit Date: May 11, 2023
• Publicly Available Date: May 16, 2023
• Journal: Langmuir
• Print ISSN: 0743-7463
• Electronic ISSN: 1520-5827
• Publisher: American Chemical Society
• Peer Reviewed: Peer Reviewed
• Volume: 39
• Issue: 13
• Pages: 4799-4808
• DOI: https://doi.org/10.1021/acs.langmuir.3c00152
• Keywords: Electrochemistry; Spectroscopy; Surfaces and Interfaces; Condensed Matter Physics; General Materials Science
• Public URL: https://nottingham-repository.worktribe.com/output/19286510