Title :
Investigating the seasonal performance of amorphous silicon single- and multi-junction modules
Author :
Gottschalg, R. ; del Cueto, J. ; Betts, T.R. ; Williams, S.R. ; Infield, D.G.
Author_Institution :
Dept. of Electron. & Electr. Eng., Loughborough Univ., UK
Abstract :
The seasonal performance fluctuations observed in amorphous silicon solar cells are investigated. The dominant forces driving the increased efficiency in summer are identified, from long-term measurements, to be thermal annealing and spectral variations. A method for correcting for changes in the incident spectrum is applied in order to correct for the seasonal changes. In a second step, the fill factor is investigated in order to establish the magnitude of thermal annealing seen by these devices. The magnitude of each effect is investigated.
Keywords :
amorphous semiconductors; annealing; elemental semiconductors; short-circuit currents; silicon; solar cells; visible spectra; Si; amorphous silicon solar cell; dominant force identification; fill factor; multijunction module; seasonal performance fluctuation; single junction module; solar cell efficiency; spectral vibration; thermal annealing;
Conference_Titel :
Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on
Conference_Location :
Osaka, Japan
Print_ISBN :
4-9901816-0-3
