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Title: Hybrid ZnO : polystyrene nanocomposite for all-polymer photonic crystals
Authors: Lova, Paola
Manfredi, Giovanni
Boarino, Luca
Laus, Michele
Urbinati, Giulia
Losco, Tonia
Marabelli, Franco
Caratto, Valentina
Ferretti, Maurizio
Castellano, Maila
Soci, Cesare
Comoretto, Davide
Keywords: DRNTU::Science::Chemistry::Organic chemistry::Polymers
Issue Date: 2015
Source: Lova, P., Manfredi, G., Boarino, L., Laus, M., Urbinati, G., Losco, T., & et al. (2015). Hybrid ZnO : polystyrene nanocomposite for all-polymer photonic crystals. Physica status solidi (C), 12(1-2), 158-162.
Series/Report no.: Physica status solidi (C)
Abstract: We report on ZnO nanoparticles-polystyrene (PS) nanocomposites (NC) engineered to modify PS matrix permeability and refractive index (n), and to fabricate 1D all-polymer photonic crystals (PC) for sensing applications. The new NC can be easily processed from solutions to prepare high quality thin films by spin coating. ZnO nanoparticles (n = 1.98) have been synthetized by solvothermal route and grafted with a silane to reduce phase segregation in the PS matrix (n = 1.58). Such procedure led to an increase of the matrix refractive index of about 1%. By casting alternated layers of the NC and cellulose acetate (CA, n = 1.46), we fabricated free-standing and flexible distributed Bragg reflectors (DBRs) of excellent optical quality. Preliminary results on the use of such DBRs as solvent vapor sensors are reported.
ISSN: 1862-6351
DOI: 10.1002/pssc.201400209
Rights: © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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