Lead-Free Zero-Dimensional Hybrid Antimony Halide Perovskite X-ray Scintillator with Exceptional Emission Efficiency and Excellent Stability as a Highly Sensitive Fluorescent Probe

Abstract

Lead-free zero-dimensional hybrid antimony halides perovskite have emerged as promising materials for a range of optoelectronic and sensing applications, owing to their adjustable structural properties and non-toxic nature. In this study, we explore the photophysical characteristics, structural robustness, and sensing capabilities of [FPPP]2SbCl7. Employing a combination of experimental and theoretical approaches, we demonstrate its remarkable yellow light photoluminescence quantum yields (99.26%) and outstanding structural integrity. Moreover, investigations into the scintillation performance of [FPPP]2SbCl7 single crystals reveal high X-ray light yields (46927 photons/MeV), low detection limit (0.71 μGyair s-1) and high-quality X-ray imaging, making them promising candidates for X-ray detection applications. Furthermore, [FPPP]2SbCl7 displays reversible fluorescence switching in response to nitrobenzene, showcasing its potential as a sensing platform for organic pollutant with outstanding repeatability and selectivity. Our findings not only deepen our comprehension of zero-dimensional hybrid antimony halides but also lay the groundwork for their utilization in diverse optoelectronic and sensing devices, opening new avenues for research in luminescent materials and detection applications.