Effect of the Surface-State Distribution on Electron Transport in Dye-Sensitized TiO2 Solar Cells: Nonlinear Electron-Transport Kinetics

J. Van De Lagemaat; A. J. Frank

doi:10.1021/jp000836o

Effect of the Surface-State Distribution on Electron Transport in Dye-Sensitized TiO2 Solar Cells: Nonlinear Electron-Transport Kinetics

Chemistry and Nanoscience

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Abstract

Analytical expressions describing electron transport in dye-sensitized nanocrystalline TiO₂ solar cells are derived and verified by intensity-modulated photocurrent spectroscopy measurements. An exponential distribution of surface states can account for the observed power law dependence of the electron-transport rate on the electron population. Use of an effective electron diffusion coefficient to describe the electron transport kinetics is found to be inadequate. A slope of 69 meV is inferred for the surface-state distribution curve.

Original language	American English
Pages (from-to)	4292-4294
Number of pages	3
Journal	Journal of Physical Chemistry B
Volume	104
Issue number	18
DOIs	https://doi.org/10.1021/jp000836o https://doi.org/10.1021/jp000836o
State	Published - 2000

NLR Publication Number

NREL/JA-520-28684

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title = "Effect of the Surface-State Distribution on Electron Transport in Dye-Sensitized TiO2 Solar Cells: Nonlinear Electron-Transport Kinetics",

abstract = "Analytical expressions describing electron transport in dye-sensitized nanocrystalline TiO2 solar cells are derived and verified by intensity-modulated photocurrent spectroscopy measurements. An exponential distribution of surface states can account for the observed power law dependence of the electron-transport rate on the electron population. Use of an effective electron diffusion coefficient to describe the electron transport kinetics is found to be inadequate. A slope of 69 meV is inferred for the surface-state distribution curve.",

author = "\{Van De Lagemaat\}, J. and Frank, \{A. J.\}",

year = "2000",

doi = "10.1021/jp000836o",

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journal = "Journal of Physical Chemistry B",

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publisher = "American Chemical Society",

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AU - Van De Lagemaat, J.

AU - Frank, A. J.

PY - 2000

Y1 - 2000

N2 - Analytical expressions describing electron transport in dye-sensitized nanocrystalline TiO2 solar cells are derived and verified by intensity-modulated photocurrent spectroscopy measurements. An exponential distribution of surface states can account for the observed power law dependence of the electron-transport rate on the electron population. Use of an effective electron diffusion coefficient to describe the electron transport kinetics is found to be inadequate. A slope of 69 meV is inferred for the surface-state distribution curve.

AB - Analytical expressions describing electron transport in dye-sensitized nanocrystalline TiO2 solar cells are derived and verified by intensity-modulated photocurrent spectroscopy measurements. An exponential distribution of surface states can account for the observed power law dependence of the electron-transport rate on the electron population. Use of an effective electron diffusion coefficient to describe the electron transport kinetics is found to be inadequate. A slope of 69 meV is inferred for the surface-state distribution curve.

UR - https://www.scopus.com/pages/publications/0001692814

U2 - 10.1021/jp000836o

DO - 10.1021/jp000836o

M3 - Article

AN - SCOPUS:0001692814

SN - 1520-6106

VL - 104

SP - 4292

EP - 4294

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 18

ER -

Effect of the Surface-State Distribution on Electron Transport in Dye-Sensitized TiO2 Solar Cells: Nonlinear Electron-Transport Kinetics

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