Temperature dependent characterization of TiO2/In(OH)xSy/PbS/PEDOT:PSS eta solar cell
Musembi, Robinson Juma1; Rusu, Marin2; Mwabora, Julius1; Aduda, Bernard1; Fostiropolous, K2; Lux-Steiner, M.Ch2
1Kenya;
2Germany

Temperature dependent current - voltage measurements have been used to characterize an highly structured TiO2/In(OH)xSy/PbS/PEDOT:PSS eta solar cell, which under AM1.5 had the following parameters: Voc = 0.249V, Jsc = 9.24mA/cm2, a fill factor FF = 0.339 and an efficiency of 0.78%. The current voltage characterizations have been done in the dark as well as under illumination. Diode ideality factor A under illumination has been found to be between 1 < A < 2 while in the dark A > 2. Recombination mechanism of the charge carriers has been found to be dominated by tunneling in the dark, while under illumination the charge carrier recombination is thermally activated. In this device, the type and place of the dominant recombination mechanism has been found to depend on illumination.
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