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Université de Neuchâtel

Efficiency limits for single-junction and tandem solar cells

Meillaud, F. ; Shah, Arvind ; Droz, C. ; Vallat-Sauvain, Evelyne ; Miazza, C.

In: Solar Energy Materials and Solar Cells, 2006, vol. 90, no. 18-19, p. 2952-2959

Basic limitations of single-junction and tandem p–n and p–i–n diodes are established from thermodynamical considerations on radiative recombination and semi-empirical considerations on the classical diode equations. These limits are compared to actual values of short-circuit current, open-circuit voltage, fill factor and efficiency for amorphous (a-Si:H) and microcrystalline (μc-Si:H)...