AUTHOR=Bennett Stephanie H. , Ghosh Joydip , Gros-Daillon Eric , Lédée Ferdinand , Mayén Guillén Javier , Verilhac Jean-Marie , Zaccaro Julien , Chung Duck Young , Klepov Vladislav , Kanatzidis Mercouri G. , Sellin Paul J. TITLE=Charge transport comparison of FA, MA and Cs lead halide perovskite single crystals for radiation detection JOURNAL=Frontiers in Detector Science and Technology VOLUME=1 YEAR=2023 URL=https://www.frontiersin.org/journals/detector-science-and-technology/articles/10.3389/fdest.2023.1249892 DOI=10.3389/fdest.2023.1249892 ISSN=2813-8031 ABSTRACT=

We report a systematic comparison of the charge transport and radiation detection properties of inorganic and organic metal bromide single crystal perovskites. We studied the performance of Bridgman-grown CsPbBr3 single crystals, together with solution-grown FAPbBr3 and MAPbBr3 single crystals. Laser time of flight is used to measure the drift mobilities for all samples, and we report a maxium mobility value of 121 ± 10 cm V−1 s−1 for CsPbBr3. Alpha particle measurements were used to assess the mobility-lifetime products, with values recorded in the range of 2 × 10−4 cm2 V−1 to 1 × 10−3 cm2 V−1. Low temperature measurements showed an increase in bulk resistivity at temperatures down to 260 K, but no significant change to the drift mobilities. The overall performance of the Cs, FA and MA samples is compared and their potential for use in gamma spectroscopy measurements is discussed.