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Optical dielectric function of Si(2,6-bis(benzimidazol-2 -yl)pyridine)(2) determined by spectroscopic ellipsometry
Univ N Carolina, NC 28223 USA.
Univ N Carolina, NC 28223 USA.
Univ N Carolina, NC 28223 USA.
Univ N Carolina, NC 28223 USA.
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2019 (English)In: Optical Materials Express, ISSN 2159-3930, E-ISSN 2159-3930, Vol. 9, no 8, p. 3469-3475Article in journal (Refereed) Published
Abstract [en]

Si(bzimpy)(2), a fluorescent organic complex, has been demonstrated as a potential electron transport and electroluminescent layer for organic electronic devices. Despite the successful synthesis and encouraging electroluminescence at 560 nm, the complex dielectric function of the water-stable complex has not been reported yet. In this letter, we report on the first spectroscopic ellipsometry data obtained from a Si(bzimpy)(2) thin film in the spectral range from 300 nm to 1900 nm (0.65 eV to 4.1 eV). A parameterized model dielectric function composed of a Tauc-Lorentz and Gaussian oscillators is employed to analyze the experimental ellipsometry data. We find a good agreement between the absorption energies observed experimentally here and density functional theory calculations reported earlier.

Place, publisher, year, edition, pages
OPTICAL SOC AMER , 2019. Vol. 9, no 8, p. 3469-3475
National Category
Atom and Molecular Physics and Optics
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URN: urn:nbn:se:liu:diva-159719DOI: 10.1364/OME.9.003469ISI: 000478100100025OAI: oai:DiVA.org:liu-159719DiVA, id: diva2:1343877
Note

Funding Agencies|NSF within the I/UCRC Center for Metamaterials [1624572]; NSF \ MPS \ Division of Chemistry (CHE) [CHE-1800331]; Swedish Agency for Innovation Systems [2014-04712]; NanoSURE program [CHE-1460867]

Available from: 2019-08-19 Created: 2019-08-19 Last updated: 2019-11-20

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