Boundary Influence on Permittivity in Molecular Films

• Authors: S. Vučenović , J. Šetrajčić , D. Mirjanić , B. Škipina
• Languages of publication: EN

Abstracts

EN

A microscopic theory of optical properties of thin molecular films, i.e. quasi 2D systems bounded by two surfaces parallel to XY planes was formulated. Harmonic exciton states were calculated using the method of two-time, retarded, temperature dependent Green's functions. It was shown that two types of excitations can occur: bulk and surface exciton states. Analysis of the optical properties (i.e. dielectrical permittivity) of these crystalline systems for low exciton concentration shows that the permittivity strongly depends on boundary parameters and the thickness of the film. Influences of boundary conditions on optical characteristics of these nanostructures were especially analyzed.

Keywords

EN

71.35.Aa; 77.55.+f; 78.20.-e; 78.67.-n

Discipline

• 78.20.-e: Optical properties of bulk materials and thin films(for optical properties related to materials treatment, see 81.40.Tv; for optical materials, see 42.70-a; for optical properties of superconductors, see 74.25.Gz; for optical properties of rocks and minerals, see 91.60.Mk; for optical properties of specific thin films, see 78.66.-w)
• 71.35.Aa: Frenkel excitons and self-trapped excitons
• 78.67.-n: Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures(for magnetic properties of nanostructures, see 75.75.-c; for electronic transport in nanoscale structures, see 73.63.-b; for mechanical properties of nanoscale systems, see 62.25.-g)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2007
• Volume: 112
• Issue: 5
• Pages: 963-968

Dates

published

2007-11

received

2007-09-03

Contributors

author

S. Vučenović

• Medical Faculty, University of Banja Luka, Banja Luka, Republic of Srpska, BiH

author

J. Šetrajčić

• Department of Physics, University of Novi Sad, Novi Sad, Vojvodina, Serbia

author

D. Mirjanić

• Medical Faculty, University of Banja Luka, Banja Luka, Republic of Srpska, BiH

author

B. Škipina

• Faculty of Technology, University of Banja Luka, Banja Luka, Republic of Srpska, BiH

References

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Identifiers

DOI

10.12693/APhysPolA.112.963