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Nanocomposites of Carbon Nanotubes and Photon Upconversion Nanoparticles for Enhanced Optical Limiting Performance

Abstract

Studies have proved that large nonlinearities, fast response, and broadband spectra are pre-requisites for designing materials with good optical limiting performance. Carbon nanotubes (CNT) have shown promising applications with best performance for 532 laser excitation. However the aromatic structure has constrained its solubility in limited solvents and thus the processability remains an issue. On the other hand, photon upconversion nanoparticles (UCNPs) have strong absorption at near infrared (NIR) region, e.g., 980 nm. Thus, in situ synthesis of nanocomposites containing UCNPs and oxidized CNTs via coordination interaction would provide both solubility in water and good optical limiting in the NIR region. Experimental results have indicated that optical limiting behavior of nanocomposites is better than that of either CNTs or UCNPs, which is reasonable due to the synergistic effect. Luminescence decay studies of UCNPs have suggested that Förster resonance energy transfer is responsible for the good optical limiting performance under 980 nm laser illumination.

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Publication details

The article was received on 05 Apr 2018, accepted on 10 Jun 2018 and first published on 12 Jun 2018


Article type: Paper
DOI: 10.1039/C8TC01576G
Citation: J. Mater. Chem. C, 2018, Accepted Manuscript
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    Nanocomposites of Carbon Nanotubes and Photon Upconversion Nanoparticles for Enhanced Optical Limiting Performance

    K. Chen, W. Su, Y. Wang, H. Ge, K. Zhang, Y. Wang, X. Xie, V. G. Gomes, H. Sun and L. Huang, J. Mater. Chem. C, 2018, Accepted Manuscript , DOI: 10.1039/C8TC01576G

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