Analysis of ion diffusion and charging in electronically conducting polydicarbazole films by impedance methods

Germà Garcia-Belmonte; Zvika Pomerantz; Juan Bisquert; Jean Paul Lellouche; Arie Zaban

doi:10.1016/j.electacta.2004.03.009

Analysis of ion diffusion and charging in electronically conducting polydicarbazole films by impedance methods

Germà Garcia-Belmonte, Zvika Pomerantz, Juan Bisquert, Jean Paul Lellouche, Arie Zaban

Department of Chemistry

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

21 Scopus citations

Abstract

An electrochemical impedance analysis of the doping kinetics of polydicarbazole films is reported. Polymer films of varying thickness were analyzed using an impedance model that considers spatially-restricted diffusion of ionic species. The main bulk parameters for diffusion and charge accumulation during doping were determined from fits. These parameters resulted independent of film thickness after considering the experimental error. The equilibrium (bulk) capacitance C₀ varies in the range of 100-800Fcm^-3. The chemical diffusion coefficient D varies within the range of 10 ^-10 to 10^-8cm²s^-1 and increases as the steady-state potential reaches the oxidation peak potential.

Original language	English
Pages (from-to)	3413-3417
Number of pages	5
Journal	Electrochimica Acta
Volume	49
Issue number	20
DOIs	https://doi.org/10.1016/j.electacta.2004.03.009
State	Published - 30 Aug 2004

Bibliographical note

Funding Information:
Support of Ministerio de Ciencia y Tecnologı́a (Spain) under project BFM2001-3640 is acknowledged. AZ thanks the Israel Ministry of Infrastructures for support of this research. JPL thanks the support of the Vth Framework European Growth project CHEMAG no. GRD2-2000-30122.

Funding

Support of Ministerio de Ciencia y Tecnologı́a (Spain) under project BFM2001-3640 is acknowledged. AZ thanks the Israel Ministry of Infrastructures for support of this research. JPL thanks the support of the Vth Framework European Growth project CHEMAG no. GRD2-2000-30122.

Funders	Funder number
Israel Ministry of Infrastructures
Ministerio de Ciencia y Tecnologı́a (Spain)	BFM2001-3640
Vth Framework European Growth	GRD2-2000-30122

Keywords

Charging
Doping kinetics
Ionic diffusion
Polydicarbazole

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10.1016/j.electacta.2004.03.009

Cite this

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title = "Analysis of ion diffusion and charging in electronically conducting polydicarbazole films by impedance methods",

abstract = "An electrochemical impedance analysis of the doping kinetics of polydicarbazole films is reported. Polymer films of varying thickness were analyzed using an impedance model that considers spatially-restricted diffusion of ionic species. The main bulk parameters for diffusion and charge accumulation during doping were determined from fits. These parameters resulted independent of film thickness after considering the experimental error. The equilibrium (bulk) capacitance C0 varies in the range of 100-800Fcm-3. The chemical diffusion coefficient D varies within the range of 10 -10 to 10-8cm2s-1 and increases as the steady-state potential reaches the oxidation peak potential.",

keywords = "Charging, Doping kinetics, Ionic diffusion, Polydicarbazole",

author = "Germ{\`a} Garcia-Belmonte and Zvika Pomerantz and Juan Bisquert and Lellouche, {Jean Paul} and Arie Zaban",

note = "Funding Information: Support of Ministerio de Ciencia y Tecnolog{\'ı}a (Spain) under project BFM2001-3640 is acknowledged. AZ thanks the Israel Ministry of Infrastructures for support of this research. JPL thanks the support of the Vth Framework European Growth project CHEMAG no. GRD2-2000-30122.",

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AU - Garcia-Belmonte, Germà

AU - Pomerantz, Zvika

AU - Bisquert, Juan

AU - Lellouche, Jean Paul

AU - Zaban, Arie

N1 - Funding Information: Support of Ministerio de Ciencia y Tecnologı́a (Spain) under project BFM2001-3640 is acknowledged. AZ thanks the Israel Ministry of Infrastructures for support of this research. JPL thanks the support of the Vth Framework European Growth project CHEMAG no. GRD2-2000-30122.

PY - 2004/8/30

Y1 - 2004/8/30

N2 - An electrochemical impedance analysis of the doping kinetics of polydicarbazole films is reported. Polymer films of varying thickness were analyzed using an impedance model that considers spatially-restricted diffusion of ionic species. The main bulk parameters for diffusion and charge accumulation during doping were determined from fits. These parameters resulted independent of film thickness after considering the experimental error. The equilibrium (bulk) capacitance C0 varies in the range of 100-800Fcm-3. The chemical diffusion coefficient D varies within the range of 10 -10 to 10-8cm2s-1 and increases as the steady-state potential reaches the oxidation peak potential.

AB - An electrochemical impedance analysis of the doping kinetics of polydicarbazole films is reported. Polymer films of varying thickness were analyzed using an impedance model that considers spatially-restricted diffusion of ionic species. The main bulk parameters for diffusion and charge accumulation during doping were determined from fits. These parameters resulted independent of film thickness after considering the experimental error. The equilibrium (bulk) capacitance C0 varies in the range of 100-800Fcm-3. The chemical diffusion coefficient D varies within the range of 10 -10 to 10-8cm2s-1 and increases as the steady-state potential reaches the oxidation peak potential.

KW - Charging

KW - Doping kinetics

KW - Ionic diffusion

KW - Polydicarbazole

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JO - Electrochimica Acta

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IS - 20

ER -

Analysis of ion diffusion and charging in electronically conducting polydicarbazole films by impedance methods

Abstract

Bibliographical note

Funding

Keywords

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