Electrochemical impedance spectra for the complete equivalent circuit of diffusion and reaction under steady-state recombination current

被引：57

作者：

Pitarch, A ^{[1
]}

Garcia-Belmonte, G ^{[1
]}

Mora-Seró, I ^{[1
]}

Bisquert, J ^{[1
]}

机构：

[1] Univ Jaume 1, Dept Ciencias Expt, E-12080 Castellon de La Plana, Spain

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2004年 / 6卷 / 11期

关键词：

D O I：

10.1039/b401234h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have analyzed the impedance model for diffusion and reaction in non-equilibrium steady-state, when large diffusion current flows in a thin filth either due to homogeneous reaction or heterogeneous charge-transfer in a nanoporous film (photoelectrochemical solar cells). Besides the standard diffusion resistance, transport in non-equilibrium conditions introduces a current generator in the transmission line equivalent Circuit, which is due to an inhomogeneous conductivity. Numerical simulation of impedance spectra shows that the effect of the current generator is rather large when the diffusion length is shorter than the film thickness.

引用

页码：2983 / 2988

页数：6

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