Thin conducting polymer films in action: conductivity, conformability, wrinkling, stretchability, stimuli-responsiveness
Francesco Greco
Institute of Solid State Physics, TUGraz
17:15 - 18:15 Tuesday 03 December 2019 TUG P2 In the study of thin films of functional materials, attention is usually focusing on the thin film only, either for the basic understanding of materials structure and properties or for their application -e.g. in devices. The substrate is often seen just as a rigid, passive, macroscopic support, with little or no interest.
What happens if the substrate is a thin film too? What if the substrate is a soft material? What if the substrate (or the thin film) is able to change its shape or its mechanical properties in response to an external stimulus? What if no substrate at all?
In this talk some cases taken from my past and current researches are presented. Investigation of thin and ultrathin films of functional conductive materials, either polymer or composites, has been the focus of my research so far, with a special attention to the interplay of conductive and mechanical properties of soft materials. The overview will include examples of free-standing conjugated polymer nanosheets [1–3], elastomer/conjugated polymer composites with humidity- or temperature-triggered shape change[4,5], ultrathin and conformable organic electronics based on temporary tattoos [6–10], including applications in epidermal monitoring systems.
Some highlights of ongoing work and future perspectives regarding printed and stretchable conductors will be provided.
[1] F. Greco, A. Zucca, S. Taccola, A. Menciassi, T. Fujie, H. Haniuda, S. Takeoka, P. Dario, V. Mattoli, Soft Matter 2011, 7, 10642.
[2] F. Greco, A. Zucca, S. Taccola, B. Mazzolai, V. Mattoli, ACS Appl. Mater. Interfaces 2013, 5, 9461.
[3] A. Zucca, K. Yamagishi, T. Fujie, S. Takeoka, V. Mattoli, F. Greco, Journal of Materials Chemistry C 2015, 3, 6539.
[4] S. Taccola, F. Greco, E. Sinibaldi, A. Mondini, B. Mazzolai, V. Mattoli, Advanced Materials 2015, 27, 1668.
[5] F. Greco, V. Domenici, A. Desii, E. Sinibaldi, B. Zupančič, B. Zalar, B. Mazzolai, V. Mattoli, Soft Matter 2013, 9, 11405.
[6] A. Zucca, C. Cipriani, Sudha, S. Tarantino, D. Ricci, V. Mattoli, F. Greco, Adv. Healthcare Mater. 2015, 4, 983.
[7] L. M. Ferrari, S. Sudha, S. Tarantino, R. Esposti, F. Bolzoni, P. Cavallari, C. Cipriani, V. Mattoli, F. Greco, Advanced Science 2018, 5, DOI 10.1002/advs.201700771.
[8] G. E. Bonacchini, C. Bossio, F. Greco, V. Mattoli, Y.-H. Kim, G. Lanzani, M. Caironi, Advanced Materials 2018, 30, 1706091.
[9] L. M. Ferrari, U. Ismailov, J. M. Badier, F. Greco, E. Ismailova, npj Flexible Electronics 2019, in press.
[10] N. Piva, F. Greco, M. Garbugli, A. Iacchetti, V. Mattoli, M. Caironi, Advanced Electronic Materials 2018, 4, 1700325.
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