This thesis discusses the interaction of radiation with matter and the characterisation of advanced

radiation detectors, focusing on the use of perovskite materials, specifically FAPbBr3 polycrystalline,

in the field of X-ray detection. The research begins with a comprehensive review of the main

principles of radiation interaction with matter, including X-ray interactions such as Compton scattering,

the photoelectric effect, and Rayleigh scattering. Basic concepts in radiation dosimetry and

charge carrier transport in semiconductor materials are also discussed, providing a foundation for

understanding the behaviour of semiconductor radiation detectors. The properties and synthesis

of perovskite materials are examined, discussing various methods of synthesising polycrystalline

perovskite materials, such as inverse temperature crystallisation, low-temperature crystallisation,

and heating-assisted solvent evaporation. Different techniques to enhance perovskite detector performance,

such as hot pressing, surface passivation, and mixing 2D and 3D perovskite structures,

are also discussed. The experimental methodology for fabricating and characterising FAPbBr3

detectors is detailed, including FAPbBr3 synthesis, grinding methods to create powder, device fabrication,

and gold contact deposition. Different characterisation techniques were employed, such

as photoluminescence spectroscopy, scanning electron microscopy, X-ray diffraction, and atomic

force microscopy, to analyse FAPbBr3 properties and device performance. Significant findings on

optimising the performance of FAPbBr3 pellets in the radiation detection field are presented, focusing

on the impact of different pressures, grinding methods, environmental impact, annealing, and

hot-pressing impact. Key performance evaluations include electrical resistivity and behaviour, photoluminescence

properties, and X-ray sensitivity. The impact of lead acetate addition to FAPbBr3

during fabrication and the application of guard rings to enhance device performance are also explored.

The thesis concludes with a discussion of the key findings, limitations, and potential future

studies to develop and improve the performance of radiation detection. The project demonstrates

the promising potential of FAPbBr3 devices for advanced X-ray detection applications, highlighting

areas of further study and research to optimise the performance of high-performance radiation

detectors. After conducting the research, it has been found that the ideal thickness for FAPbBr3

pellets for radiation detection is 1 mm. A pressing time of 5 minutes and applying higher pressures

resulted in better outcomes. Annealing significantly improved the overall detector quality, enhancing

sensitivity. Additionally, including lead acetate helped decrease dark current, further optimising

the device’s performance for efficient radiation detection. These findings provide a clear pathway

for creating high-performance FAPbBr3-based radiation detectors.