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

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

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


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.

Original languageEnglish
Pages (from-to)4799-4808
Number of pages10
Issue number13
StatePublished - Apr 4 2023

Bibliographical note

Funding Information:
The authors acknowledge funding through the Engineering and Physical Sciences Research Council (UK) via grants EP/P027814/1 and EP/P027741/1 and Winton Programme for the Physics of Sustainability. This work benefited from the use of the SasView application, originally developed under NSF award DMR-0520547. SasView contains code developed with funding from the European Union’s Horizon 2020 Research and Innovation Programme under the SINE2020 project, grant agreement no. 654000.

Publisher Copyright:
© 2023 The Authors. Published by American Chemical Society.

ASJC Scopus subject areas

  • Materials Science (all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry


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