Abstract
SummaryA study on the use of CuOx, which is intended for replacing PEDOT:PSS as an anode interlayer in inverted hybrid solar cells, has been carried out. The fabricated solar cells have typical configuration structure of ITO/AZO/P3HT:PCBM/CuOx/Ag. AZO and CuOx thin layers were prepared by the sol gel method, while P3HT:PCBM layer was prepared by the spin‐coating method. The solar cell performances were found to be affected by the addition of CuOx interlayer. Solar cells with CuOx interlayer exhibit better working performance parameters (short‐circuited photocurrent density, filling factor and power conversion efficiency) in comparison to solar cells without using CuOx interlayer. These improvements are attributed to more efficient charge extraction due to reduction of trapping or recombination loss, which is in agreement with the observed photocurrent transient characteristics.
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