4/10/2023 0 Comments Blender led![]() Sumathy, Review on dye-sensitized solar cells (DSSCs): fundamental concepts and novel materials. Mendes, Review on nanostructured photoelectrodes for next generation dye-sensitized solar cells. ![]() Nazeeruddin et al., Engineering of efficient panchromatic sensitizers for nanocrystalline TiO 2-based solar cells. Grätzel, Low cost photovoltaic modules based on dye sensitized nanocrystalline titanium dioxide and carbon powder. Results indicated that high yield with small reaction time of TiO 2 submicron spheres have real potential to scale-up for the development of DSSC.Ī. ![]() Moreover, electrochemical impedance spectroscopy (EIS) revealed that NPs incorporation in SMS significantly increased electron lifetime from 3.29 × 10 −1 s for (0 wt% NPs) to 3.95 × 10 −1 s for (20 wt% NPs) consequently, PCE increased by ~ 11%, ~ 13%, and ~ 23% as compared to 0 wt% NPs, Dyesol-S (commercial scattering paste) and without scattering layer-based devices respectively. Diffuse reflectance and incident-photon-to-current-conversion-efficiency (IPCE) investigations have demonstrated that prepared SMS/NP scattering layer is effective to broadened light harvesting spectrum. Therefore, in current study, a facile approach has been used to prepare high-yield TiO 2 submicron spheres (SMS) as a scattering particle and blended with nanoparticles (NPs) of TiO 2 to overcome voids and increase surface area. This low yield makes these processes limited to commercialize. Several scattering structures are developed to overcome these issues, it is found that in majority previous reports very low precursor concentration is used and longer reaction time is given to attain highly homogenous and porous scattering particles which ultimately produced very small yield of TiO 2. Scattering layer composed of submicron sized particles which scatter light effectively however, large size aggregated particles possess poor surface area and create voids between particles leading to lose interconnectivity, and consequently low dye adsorption and higher recombination with electrolyte. Scattering layer in dye-sensitized solar cell (DSSC) has a proven potential to enhance the photoconversion efficiency (PCE) of DSSC by increasing light harvesting ability.
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