29 March 2013 Novel patternable and conducting metal-polymer nanocomposites: a step towards advanced mutlifunctional materials
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Abstract
In this work, we present a novel patternable conducting nanocomposite containing gold nanoparticles. Here, the in-situ polymerization of 3T is carried out using HAuCl4 as oxidizing agent inside PMMA as host matrix. During the bake step, the gold salt is also reduced from Au(III) to Au(0) generating Au nanoparticles in the interpenetrating polymer network (IPN) system. We found that this novel multifunctional resist shows electrical conductivity and plasmonic properties as well as potential patterning capability provided by the host matrix. The resulting nanocomposite has been investigated by TEM and UV-Vis spectroscopy. Electrical characterization was also conducted for different concentration of 3T and Au(III) following a characteristic percolation behaviour. Conductivities values from 10-5 to 10 S/cm were successfully obtained depending on the IPN formulation. Moreover, The Au nanoparticles generated exhibited a localized surface plasmon resonance at around 520 nm. This synthetic approach is of potential application to modify the conductivity of numerous insulating polymers and synthesize Au nanoparticles preserving to some extent their physical and chemical properties. In addition, combination of optical properties (Plasmonics), electrical, and lithographic capability in the same material allows for the design of materials with novel functionalities and provides the basis for next generation devices.
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Pedro J. Rodríguez-Cantó, Pedro J. Rodríguez-Cantó, Mariluz Martínez-Marco, Mariluz Martínez-Marco, Rafael Abargues, Rafael Abargues, Victor Latorre-Garrido, Victor Latorre-Garrido, Juan P. Martínez-Pastor, Juan P. Martínez-Pastor, } "Novel patternable and conducting metal-polymer nanocomposites: a step towards advanced mutlifunctional materials", Proc. SPIE 8682, Advances in Resist Materials and Processing Technology XXX, 86820W (29 March 2013); doi: 10.1117/12.2011716; https://doi.org/10.1117/12.2011716
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