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Rapid and high-resolution patterning of microstructure and composition in organic semiconductors using ‘molecular gates’

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  • Aleksandr Perevedentsev

    (Institut de Ciència de Materials de Barcelona (ICMAB-CSIC))

  • Mariano Campoy-Quiles

    (Institut de Ciència de Materials de Barcelona (ICMAB-CSIC))

Abstract

Photolithography has been a major enabling tool for miniaturisation of silicon devices that underpinned the electronics revolution. Rapid, high-resolution patterning of key material characteristics would, similarly, accelerate the advent of molecular electronics and photonics. Here we advance a versatile approach employing local diffusion of functional small-molecular compounds through a solution-processed ‘molecular gate’ interlayer. Diffusion is activated using laser light or solvent vapour jets―a process that can be finely modulated down to molecule-on-demand deposition precision with almost photolithographic resolution ( 3 S cm–1 for improved electronic devices. Finally, we demonstrate the unique capability for one-step patterning of multiple functionalities by spatially modulating composition in ternary blends, leading to locally tunable photoluminescence from blue to red.

Suggested Citation

  • Aleksandr Perevedentsev & Mariano Campoy-Quiles, 2020. "Rapid and high-resolution patterning of microstructure and composition in organic semiconductors using ‘molecular gates’," Nature Communications, Nature, vol. 11(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17361-8
    DOI: 10.1038/s41467-020-17361-8
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