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Proceedings Paper

Hyperbolic metamaterial nanostructures to tune charge-transfer dynamics (Conference Presentation)
Author(s): Kwang Jin Lee; Yiming Xiao; Jae Heun Woo; Eun Sun Kim; David Kreher; André-Jean Attias; Fabrice Mathevet; Jean-Charles Ribierre; Jeong Weon Wu; Pascal André

Paper Abstract

Charge transfer (CT) is an essential phenomenon relevant to numerous fields including biology, physics and chemistry.1-5 Here, we demonstrate that multi-layered hyperbolic metamaterial (HMM) substrates alter organic semiconductor CT dynamics.6 With triphenylene:perylene diimide dyad supramolecular self-assemblies prepared on HMM substrates, we show that both charge separation (CS) and charge recombination (CR) characteristic times are increased by factors of 2.5 and 1.6, respectively, resulting in longer-lived CT states. We successfully rationalize the experimental data by extending Marcus theory framework with dipole image interactions tuning the driving force. The number of metal-dielectric pairs alters the HMM interfacial effective dielectric constant and becomes a solid analogue to solvent polarizability. Based on the experimental results and extended Marcus theory framework, we find that CS and CR processes are located in normal and inverted regions on Marcus parabola diagram, respectively. The model and further PH3T:PCBM data show that the phenomenon is general and that molecular and substrate engineering offer a wide range of kinetic tailoring opportunities. This work opens the path toward novel artificial substrates designed to control CT dynamics with potential applications in fields including optoelectronics, organic solar cells and chemistry. 1. Marcus, Rev. Mod. Phys., 1993, 65, 599. 2. Marcus, Phys. Chem. Chem. Phys., 2012, 14, 13729. 3. Lambert, et al., Nat. Phys., 2012, 9, 10. 4. C. Clavero, Nat. Photon., 2014, 8, 95. 5. A. Canaguier-Durand, et al., Angew. Chem. Int. Ed., 2013, 52, 10533. 6. K. J. Lee, et al., Submitted, 2015, arxiv.org/abs/1510.08574.

Paper Details

Date Published: 9 November 2016
PDF: 1 pages
Proc. SPIE 9918, Metamaterials, Metadevices, and Metasystems 2016, 991805 (9 November 2016); doi: 10.1117/12.2236323
Show Author Affiliations
Kwang Jin Lee, CNRS-EWHA International Research Ctr. (Korea, Republic of)
Yiming Xiao, CNRS-EWHA International Research Ctr. (Korea, Republic of)
Jae Heun Woo, CNRS-EWHA International Research Ctr. (Korea, Republic of)
Korea Research Institute of Standards and Science (Korea, Republic of)
Eun Sun Kim, CNRS-EWHA International Research Ctr. (Korea, Republic of)
David Kreher, Institut Parisien de Chimie Moléculaire (France)
André-Jean Attias, Institut Parisien de Chimie Moléculaire (France)
Fabrice Mathevet, Institut Parisien de Chimie Moléculaire (France)
Jean-Charles Ribierre, CNRS-EWHA International Research Ctr. (Korea, Republic of)
Jeong Weon Wu, CNRS-EWHA International Research Ctr. (Korea, Republic of)
Pascal André, CNRS-EWHA International Research Ctr. (Korea, Republic of)
RIKEN (Japan)


Published in SPIE Proceedings Vol. 9918:
Metamaterials, Metadevices, and Metasystems 2016
Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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