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Organic Monolithic Natural Hyperbolic Material

Title
Organic Monolithic Natural Hyperbolic Material
Authors
Lee, Yeon UiGaudin, Olivier P. M.Lee, KwangJinChoi, EunyoungPlacide, VirginieTakaishi, KazutoMuto, TsuyoshiAndre, PascalMuranaka, AtsuyaUchiyama, MasanobuMathevet, FabriceAoyama, TetsuyaWu, JeongWeonD'Aleo, AnthonyRibierre, Jean-Charles
Ewha Authors
우정원Anthony Daleo
SCOPUS Author ID
우정원scopus
Issue Date
2019
Journal Title
ACS PHOTONICS
ISSN
2330-4022JCR Link
Citation
ACS PHOTONICS vol. 6, no. 7, pp. 1681 - 1689
Keywords
organic natural hyperbolic materialorganic semiconductorlayered molecular packing structuresurface excitonic polaritonsspontaneous emission engineering
Publisher
AMER CHEMICAL SOC
Indexed
SCIE; SCOPUS WOS
Document Type
Article
Abstract
Materials with hyperbolic dispersion are the key to a variety of photonic applications involving nanoimaging, hyper-lensing, and spontaneous emission engineering, due to the availability of high k modes. Here we demonstrate that spin-coated polycrystalline organic semiconducting films with a layered molecular packing structure can exhibit a hyperbolic dispersion over a wide spectral range and support the presence of surface excitonic polaritons. This was evidenced from 670 to 920 nm and is related to the negative real part of the dielectric permittivity of the selected quinoidal organic semiconductor. In addition, the accessible high k modes lead to changes in the spontaneous emission decay rate and photoluminescence quantum yield of emitters placed nearby the organic monolithic (composed of only one molecule and not necessitating an alternating multilayer structure) natural hyperbolic material. This study opens a new route toward single-step solution manufacturing of large-area, low-cost, and flexible organic photonic metadevices with hyperbolic dispersion.
DOI
10.1021/acsphotonics.9b00185
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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