Structural, optical and electrical properties of polypyrrole in an ionic liquid

Osman Gürbüz; Bahire Filiz Şenkal; Orhan İçelli

doi:10.1007/s00289-016-1856-3

Structural, optical and electrical properties of polypyrrole in an ionic liquid

Osman Gürbüz^*, Bahire Filiz Şenkal, Orhan İçelli

^*Corresponding author for this work

Department of Chemistry

Yildiz Technical University

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Structural, optical and dielectric properties of polypyrrole (Ppy) were studied. Structural and optical properties of Ppy were studied using FT-IR and UV–visible spectrophotometer. Optical band gap (E_g) values of Ppy in an ionic liquid were increased with composite raw material. Moreover, the relation between (E_g) and refractive index (n) was estimated by Moss relation and then the relation between n and optical high-frequency dielectric constant (ε^′) were calculated. The experimental dielectric constant values of Ppy were lower than the theoretical values calculated from the relation. The alternating current (ac) conductivity shows that the compound is a typical organic semiconductor, as its conductivity increases with increasing frequency and the obtained results have been discussed in terms of the correlated barrier hopping (CBH) model. The absorption coefficient effects of the Ppy samples exhibited nearly-Debye type process. The calculated α and τ₀ values are ~0.14 and ~0.01587 s, respectively.

Original language	English
Pages (from-to)	2625-2639
Number of pages	15
Journal	Polymer Bulletin
Volume	74
Issue number	7
DOIs	https://doi.org/10.1007/s00289-016-1856-3
Publication status	Published - 1 Jul 2017

Bibliographical note

Publisher Copyright:
© 2016, Springer-Verlag Berlin Heidelberg.

Funding

This work was supported by the Scientific Research Fund of Yıldız Technical University under Project Number: 2015-01-01-KAP08.

Funders	Funder number
Yildiz Teknik Üniversitesi	2015-01-01-KAP08

Keywords

AC conductivity
Dielectric constant
Optical band gap
Polypyrrole

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10.1007/s00289-016-1856-3

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abstract = "Structural, optical and dielectric properties of polypyrrole (Ppy) were studied. Structural and optical properties of Ppy were studied using FT-IR and UV–visible spectrophotometer. Optical band gap (Eg) values of Ppy in an ionic liquid were increased with composite raw material. Moreover, the relation between (Eg) and refractive index (n) was estimated by Moss relation and then the relation between n and optical high-frequency dielectric constant (ε′) were calculated. The experimental dielectric constant values of Ppy were lower than the theoretical values calculated from the relation. The alternating current (ac) conductivity shows that the compound is a typical organic semiconductor, as its conductivity increases with increasing frequency and the obtained results have been discussed in terms of the correlated barrier hopping (CBH) model. The absorption coefficient effects of the Ppy samples exhibited nearly-Debye type process. The calculated α and τ0 values are ~0.14 and ~0.01587 s, respectively.",

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author = "Osman G{\"u}rb{\"u}z and {\c S}enkal, {Bahire Filiz} and Orhan İ{\c c}elli",

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T1 - Structural, optical and electrical properties of polypyrrole in an ionic liquid

AU - Gürbüz, Osman

AU - Şenkal, Bahire Filiz

AU - İçelli, Orhan

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Structural, optical and dielectric properties of polypyrrole (Ppy) were studied. Structural and optical properties of Ppy were studied using FT-IR and UV–visible spectrophotometer. Optical band gap (Eg) values of Ppy in an ionic liquid were increased with composite raw material. Moreover, the relation between (Eg) and refractive index (n) was estimated by Moss relation and then the relation between n and optical high-frequency dielectric constant (ε′) were calculated. The experimental dielectric constant values of Ppy were lower than the theoretical values calculated from the relation. The alternating current (ac) conductivity shows that the compound is a typical organic semiconductor, as its conductivity increases with increasing frequency and the obtained results have been discussed in terms of the correlated barrier hopping (CBH) model. The absorption coefficient effects of the Ppy samples exhibited nearly-Debye type process. The calculated α and τ0 values are ~0.14 and ~0.01587 s, respectively.

AB - Structural, optical and dielectric properties of polypyrrole (Ppy) were studied. Structural and optical properties of Ppy were studied using FT-IR and UV–visible spectrophotometer. Optical band gap (Eg) values of Ppy in an ionic liquid were increased with composite raw material. Moreover, the relation between (Eg) and refractive index (n) was estimated by Moss relation and then the relation between n and optical high-frequency dielectric constant (ε′) were calculated. The experimental dielectric constant values of Ppy were lower than the theoretical values calculated from the relation. The alternating current (ac) conductivity shows that the compound is a typical organic semiconductor, as its conductivity increases with increasing frequency and the obtained results have been discussed in terms of the correlated barrier hopping (CBH) model. The absorption coefficient effects of the Ppy samples exhibited nearly-Debye type process. The calculated α and τ0 values are ~0.14 and ~0.01587 s, respectively.

KW - AC conductivity

KW - Dielectric constant

KW - Optical band gap

KW - Polypyrrole

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ER -

Structural, optical and electrical properties of polypyrrole in an ionic liquid

Abstract

Bibliographical note

Funding

Keywords

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