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Correlation between Photophysical and Structural-Properties in Guanidinium-Iodide Treated Perovskite Solar Cells

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posted on 2022-01-14, 04:11 authored by MOSTAFA RABIE SHLALY BAHR OTHMAN
The thesis investigates the impact of a Guanidinium iodide (GAI) surface treatment on the structural and photophysical properties of triple-cation CsMAFA perovskite films. The results suggest that a low-concentration treatment with GAI enhances the CsMAFA perovskite crystallinity, homogenizes the PL intensity, and improves the device performance. While, on the other hand, excess GAI yields low degree of crystallization leading to poor device performance. The results show that controlling the concentration of surface treatment agents is important for the homogenization of perovskite optoelectronic properties and hence eliminating performance losses and instabilities.


Campus location


Principal supervisor

Joanne Etheridge

Additional supervisor 1

Udo Bach

Year of Award


Department, School or Centre

Materials Science and Engineering


Master of Engineering Science (Research)

Degree Type



Faculty of Engineering