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Photo-induced evolution of copper sheets from cluster molecules and its application to photolithographic copper patterning

  • Nano-crystals and Self-assembly
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Abstract.

UV photoexcitation of (t-butylethynyl copper)24 cluster films induces segregation of the crystals into metallic and organic phases and leads to evolve the metallic sheets sandwiched by organic polymers. The growth of the metallic crystals in the plane of the photo-electromagnetic field is attributed due to plasmon-plasmon interaction among nanoparticles embedded in dielectric polymer matrices. The surface enhanced photochemical reaction of residual cluster molecules on the photon incident direction is expected to take an important role for joining the metal particles to produce a metallic sheet. We can apply this phenomenon for photolithographic copper pattern generation on a flexible base plate.

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Authors and Affiliations

  1. Institute for Molecular Science (IMS), Okazaki, Japan

    N. Nishi, J. Nishijo, K. Judai, C. Okabe & O. Oishi

Authors
  1. N. Nishi
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  2. J. Nishijo
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  3. K. Judai
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  4. C. Okabe
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  5. O. Oishi
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Correspondence to N. Nishi.

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Nishi, N., Nishijo, J., Judai, K. et al. Photo-induced evolution of copper sheets from cluster molecules and its application to photolithographic copper patterning. Eur. Phys. J. D 43, 287–290 (2007). https://doi.org/10.1140/epjd/e2007-00088-6

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  • DOI: https://doi.org/10.1140/epjd/e2007-00088-6

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