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SM ISO690:2012 POTLOG, Tamara, SPALATU, Nicolae, CIOBANU, Vasile, HIIE, Jaan, MERE, Arvo, MIKLI, Valdek, VALDNA, Vello. Analysis of fill factor losses in thin film CdS/CdTe photovoltaic devices. In: Moldavian Journal of the Physical Sciences, 2010, nr. 3-4(9), pp. 363-367. ISSN 1810-648X. |
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Moldavian Journal of the Physical Sciences | ||||||
Numărul 3-4(9) / 2010 / ISSN 1810-648X /ISSNe 2537-6365 | ||||||
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Pag. 363-367 | ||||||
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In this paper, CdS/CdTe solar cells with conversion efficiency values of η = 5.1, 3.6,
3.5, and 2.9% are analyzed and the effects of the device parameters, such as the diode ideality
factor (n), the saturation current-density (Jo), and the series resistance (Rs,) on the fill factor,
both in the dark and under illumination are investigated. The solar cells with efficiency η =
5.1, 3.6, and 2.9% were grown from 3N source material. A solar cell with 3.5% efficiency
was made of a 6N CdTe source. The temperature current density-voltage (J-U-T) and capacitance-voltage characteristics (C-U-T) of CdS/CdTe solar cells were measured in a temperature
range of 303-383 K. For all studied cells, the diode ideality factor in the dark is much higher
than 2 and the saturation current density increases under illumination, while both the series
and shunt resistances decrease under illumination and temperature. |
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