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Reverse Bias Degradation in Shadowed Devices in TiO2 Dye-Sensitized Solar Cell Modules

Published online by Cambridge University Press:  07 June 2012

Simone Mastroianni ,
Thomas M. Brown ,
Alessandro Lanuti ,
Lucio Cinà ,
Angelo Lembo ,
Massimiliano Liberatore ,
Andrea Reale  and
Aldo Di Carlo
Simone Mastroianni
Affiliation:
CHOSE - Centre for Hybrid and Organic Solar Energy, Department of Electronic Engineering University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome (Italy)
Thomas M. Brown
Affiliation:
CHOSE - Centre for Hybrid and Organic Solar Energy, Department of Electronic Engineering University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome (Italy) Dyepower Consortium, viale Castro Pretorio 122, 00185 Rome (Italy)
Alessandro Lanuti
Affiliation:
CHOSE - Centre for Hybrid and Organic Solar Energy, Department of Electronic Engineering University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome (Italy) Dyepower Consortium, viale Castro Pretorio 122, 00185 Rome (Italy)
Lucio Cinà
Affiliation:
CHOSE - Centre for Hybrid and Organic Solar Energy, Department of Electronic Engineering University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome (Italy)
Angelo Lembo
Affiliation:
Dyepower Consortium, viale Castro Pretorio 122, 00185 Rome (Italy)
Massimiliano Liberatore
Affiliation:
CHOSE - Centre for Hybrid and Organic Solar Energy, Department of Electronic Engineering University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome (Italy)
Andrea Reale
Affiliation:
CHOSE - Centre for Hybrid and Organic Solar Energy, Department of Electronic Engineering University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome (Italy) Dyepower Consortium, viale Castro Pretorio 122, 00185 Rome (Italy)
Aldo Di Carlo
Affiliation:
CHOSE - Centre for Hybrid and Organic Solar Energy, Department of Electronic Engineering University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome (Italy) Dyepower Consortium, viale Castro Pretorio 122, 00185 Rome (Italy)
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Abstract

Mismatched or shadowed individual cells in a module can operate in the Reverse Bias (RB) regime. Subjecting a dye solar cell (DSC) to an accelerated RB stress by forcing a constant current equal to 2-fold its ISC, produced significant alterations on the current-voltage (I-V) characteristics in RB with time and a severe loss of cell efficiency in 32h. We investigated and identified a key mechanism for RB charge transfer and degradation in DSCs. I-V characteristics in RB were found to be sensitive to the type of dye utilized and to TiCl4 substrate treatment.

Keywords

photovoltaicdeviceselectrical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1442: Symposium Q – Titanium Dioxide Nanomaterials—2012 , 2012 , mrss12-1442-q06-11
Copyright
Copyright © Materials Research Society 2012

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References

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