Title :
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
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;
Conference_Titel :
Reliability Physics Symposium (IRPS), 2013 IEEE International
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4799-0112-8
Electronic_ISBN :
1541-7026
DOI :
10.1109/IRPS.2013.6532011
