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Recombination Study of Dye Sensitized Solar Cells with Natural Extracts

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Academic year: 2019

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Figure 1. DSSC assembly with the interfacial reactions being: 1, photoexcitation; 2, injection; 3, transport; 4, diffusion; 5, regeneration; and 6-8, recombination  charges.
Figure 2. Natural dyes (a) plum; (b) eggplant; and (c) hibiscus, and the respective cell assemblies in sandwich format of anode and cathode.
Table 1. Collection time and electron lifetime extract from IMPS and  IMVS curves, calculated using equations 2 and 3
Figure 5. Nyquist plots obtained from EIS measured under AM 1.5G  illumination and an open-circuit condition for DSSCs with natural dyes.
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Keywords: Organic solar cells, degradation, mobility, transient photovoltage (TPV), open-circuit corrected charge carrier extraction (OTRACE), space charge limited