### Abstract

Language | English |
---|---|

Pages | 25504-25507 |

Number of pages | 4 |

Journal | Journal of Physical Chemistry B |

Volume | 110 |

Issue number | 50 |

Status | Published - 2006 |

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**Analysis of photovoltage decay transients in dye-sensitized solar cells.** / Walker, A B; Peter, Laurence M; Lobato, K; Cameron, Petra.

Research output: Contribution to journal › Article

*Journal of Physical Chemistry B*, vol. 110, no. 50, pp. 25504-25507.

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TY - JOUR

T1 - Analysis of photovoltage decay transients in dye-sensitized solar cells

AU - Walker,A B

AU - Peter,Laurence M

AU - Lobato,K

AU - Cameron,Petra

PY - 2006

Y1 - 2006

N2 - It is shown that application of the so-called quasi-static approximation greatly simplifies the theoretical treatment of the open circuit photovoltage decay of dye-sensitized nanostructured solar cells (DSCs), since it removes the need to treat the kinetics of trapping and detrapping explicitly and leads to a straightforward analytical solution in the case of an exponential trap distribution. To identify the conditions under which the quasi-static approach is valid, transients calculated using the quasi-static approximation are compared with the results of numerical calculations that treat trapping and detrapping of electrons explicitly. The application of the quasi-static approach to derive the rate constant for the back-reaction of electrons from experimental photovoltage decay data is illustrated for an optimized DSC.

AB - It is shown that application of the so-called quasi-static approximation greatly simplifies the theoretical treatment of the open circuit photovoltage decay of dye-sensitized nanostructured solar cells (DSCs), since it removes the need to treat the kinetics of trapping and detrapping explicitly and leads to a straightforward analytical solution in the case of an exponential trap distribution. To identify the conditions under which the quasi-static approach is valid, transients calculated using the quasi-static approximation are compared with the results of numerical calculations that treat trapping and detrapping of electrons explicitly. The application of the quasi-static approach to derive the rate constant for the back-reaction of electrons from experimental photovoltage decay data is illustrated for an optimized DSC.

M3 - Article

VL - 110

SP - 25504

EP - 25507

JO - Journal of Physical Chemistry B

T2 - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

SN - 1520-6106

IS - 50

ER -