Proceedings of nanoGe Fall Meeting19 (NFM19)
DOI: https://doi.org/10.29363/nanoge.nfm.2019.142
Publication date: 18th July 2019
The search for an ideal X-ray sensitive photo-conductor is an ongoing task since the most semiconductors do not absorb high energy radiation effectively. However, the latter is an intrinsic property of the lead-halide perovskites semiconductors due to high radiation attenuation by the lead and halide ions combined with there good charge transport properties.
In this presentation we will review our latest efforts utilizing organic-inorganic (MAPbI3) as well as a pure inorganic metal-halide perovkite (CsPbBr3) for X-ray to current converters. We demonstrate a sintering as well as a melting process which leads to the formation of several hundred µm thick and crystalline samples. Most notable for these samples are the good charge transport properties and unusual high mobility- lifetime products (~1E-3 cm^2/V).
The achieved X-ray to current conversation rate up to 2500 µC/Gycm2 is on par to the current state-of-the-art Cd(Zn)Te detector technology and our findings inform on a low-cost scaleable technology for the next generation of high energy detector technology.
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