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Interfacial charge transport of Ag2+-decorated CuI thin film for solar cell application

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Abstract

Herein, we prepared CuI film by spray pyrolysis technique, and Ag nanoparticles decorated CuI thin film by photoreduction method, surface modified approach for improving the interfacial charge transfer property and work function of hole transport layer (HTL) in Perovskite Solar Cell (PSC). The concentration of the Ag was investigated by immersing the CuI thin film in the Ag solution at time intervals. The crystalline property and vibration spectra of the as-fabricated thin film were examined by an X-ray diffraction pattern (XRD) and Raman Spectroscopy. The work function of the as-fabricated thin film was analyzed by Contact Potential Difference (CPD) method as a result of Scanning Kelvin Probe (SKP). The charge transfer resistance of the working electrodes was studied, and the least dipping time sample shows the low charge transfer resistance (36.35 Ω) and less relaxation time (0.19 s).

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Acknowledgements

The authors thank Dr. V. Ganesh and Dr. S. Yuvaraj for EIS and KPM measurements.

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Authors and Affiliations

  1. Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603 203, India

    K. Prakash, S. Prabakaran, S. Harish & M. Navaneethan

  2. Nanotechnology Research Centre (NRC), Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 203, India

    M. Navaneethan

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  1. K. Prakash
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  2. S. Prabakaran
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Prakash, K., Prabakaran, S., Harish, S. et al. Interfacial charge transport of Ag2+-decorated CuI thin film for solar cell application. J Mater Sci: Mater Electron 33, 8586–8593 (2022). https://doi.org/10.1007/s10854-021-06578-y

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  • DOI: https://doi.org/10.1007/s10854-021-06578-y

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