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

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.

SUBMITTER: Toolan DTW

PROVIDER: S-EPMC10077578 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature

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

Toolan Daniel T W DTW Weir Michael P MP Kilbride Rachel C RC Anthony John E JE Greenham Neil C NC Friend Richard H RH Rao Akshay A Mykhaylyk Oleksandr O OO Jones Richard A L RAL Ryan Anthony J AJ

Langmuir : the ACS journal of surfaces and colloids 20230320 13

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 withi ...[more]

PMID: 36940205

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