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Boosting of Power Conversion Efficiency of 2D ZnO Nanostructures-Based DSSC by the Lorentz Force with Chitosan Polymer Electrolyte

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Abstract

Power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs) fabricated from titanium tetra-isopropoxide (TTIP) treated Li doped two dimensional (2D) ZnO nanostructures based photoelectrode with chitosan polymer electrolyte is reported here. The defect induced room temperature ferromagnetism (RTFM) is observed and has been established from the bound magnetic polaron mechanism (BMP) for an optimum concentration of Li doped ZnO (ZnO:Li) nanostructures. Also, the incorporation of Li in the 2D ZnO nanostructure (2DZL) reduces the charge transfer resistance and hence an enhanced PCE of 5.58% (which is about two and half times superior to that of pristine ZnO). As the fabricated 2DZL exhibits RTFM, a field of 200 Oe when applied to this DSSC showed an improved PCE of 5.83%. The mechanism of such an enhancement is explained from the effect of Lorentz force and the results are discussed.

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Acknowledgements

Authors thank DST-SAIF, KOCHI for providing TEM facility. The author I. John Peter thank Department of Science and Technology, India for the financial support under DST-INSPIRE fellowship scheme (Code: IF160974).

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  1. Nanostructure Lab, Department of Physics, The Gandhigram Rural Institute – Deemed to be University, Gandhigram, Tamil Nadu, 624 302, India

    E. Praveen, I. John Peter, A. Muthu Kumar, K. Ramachandran & K. Jayakumar

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Praveen, E., Peter, I.J., Kumar, A.M. et al. Boosting of Power Conversion Efficiency of 2D ZnO Nanostructures-Based DSSC by the Lorentz Force with Chitosan Polymer Electrolyte. J Inorg Organomet Polym 30, 4927–4943 (2020). https://doi.org/10.1007/s10904-020-01629-z

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