Study of the effects of UV-exposure on dye-sensitized solar cells

Author

Bari, D. ; Wrachien, N. ; Meneghesso, Gaudenzio ; Andrea, C. ; Tagliaferro, R. ; Brown, T.M. ; Reale, Andrea ; Di Carlo, A.

Author_Institution

Dept. of Inf. Eng., Univ. of Padova, Padua, Italy

fYear

2013

fDate

14-18 April 2013

Abstract

We studied the effects of UV irradiation on encapsulated ruthenium-based dye-sensitized solar cell by means of accelerated irradiation stresses. A progressive degradation of open-circuit voltage occurs, while the short-circuit current suddenly drops during stress. The sudden degradation can easily be detected from DC measurements and it occurs when series resistance starts to increase. Electrolyte bleaching is the main effect for cell failure and it induces the degradation of TiO₂/Dye/Electrolyte interface as side effect. At the end of the irradiation a complete loss of electrolyte was observed.

Keywords

electrolytes; encapsulation; ruthenium; short-circuit currents; solar cells; titanium compounds; TiO₂; UV-exposure; accelerated irradiation stresses; cell failure; dc measurements; dye interface; electrolyte bleaching; electrolyte interface; encapsulated ruthenium-based dye-sensitized solar; open-circuit voltage; short-circuit current; Degradation; Lighting; Photovoltaic cells; Radiation effects; Resistance; Short-circuit currents; Stress; Dye-sensitized solar cell; degradation mechanisms; electrolyte bleaching; reliability; ultraviolet irradiation;

fLanguage

English

Publisher

ieee

Conference_Titel

Reliability Physics Symposium (IRPS), 2013 IEEE International

Conference_Location

Anaheim, CA

ISSN

1541-7026

Print_ISBN

978-1-4799-0112-8

Electronic_ISBN

1541-7026

Type

conf

DOI

10.1109/IRPS.2013.6532011

Filename

6532011