Organic–Inorganic Hybrid Mn‐Based Transparent Glass for Curved X‐Ray Scintillation Imaging

Abstract

The current mainstream planar X‐ray imaging techniques face significant challenges for accurately capturing the internal structure of curved objects, since the variable distances between the curved objects and the flat‐panel scintillation screen cannot eliminate the distortion in X‐ray imaging. Though large‐area and transparent curved scintillation screens are much more desirable. Here, organic–inorganic hybrid Mn‐based single crystals ([CH3Ph3P]2MnX4, X = Cl, Br, I) exhibiting high photoluminescence quantum yield (PLQY) and low melting temperature have been employed to prepare transparent glass for X‐ray scintillation imaging application through a low‐temperature melting strategy. The [CH3Ph3P]2MnBr4‐glass shows high PLQY (47.8%), high‐resolution X‐ray imaging performance (12.3 lp mm−1), low limit of detection (25.33 nGy s−1), and impressive X‐ray irradiation stability (102 Gy). Furthermore, high‐contrast X‐ray imaging at a low dose (6.865 µGy per exposure, 14.5 times lower than the chest radiograph) is achieved. Based on the low glass transition temperature (Tg = 53.6 °C) and easy‐shapeable properties of [CH3Ph3P]2MnBr4‐glass scintillator, the large‐area curved scintillation screen with a series of sizes of Φ 2×4 – Φ 8×4 cm2 can be easily fabricated and show high X‐ray imaging quality. These findings provide a paradigm for future research in shapeable X‐ray scintillators, unlocking new possibilities for curved and 3D X‐ray imaging.

Mn(II)-Based Metal Halide with Near-Unity Quantum Yield for White LEDs and High-Resolution X-ray Imaging

“…These structures extend in 3D space, as depicted in Figure d. It can be speculated that the longer Mn–Mn distance (minimum distance of 11.859 Å, maximum distance of 13.073 Å) can effectively reduce the energy transfer between Mn 2+ ions and nonradiative energy transfer to quenching centers. , Moreover, the X-ray diffraction (XRD) pattern of (4-BTP) 2 MnBr 4 powder agrees well with the simulated data derived from the SCXRD (Figure e), which indicates an excellent high phase purity and uniformity. Furthermore, (4-BTP) 2 MnBr 4 does not show weight loss before 356 °C in the thermogravimetric analysis plot as shown in Figure S2, demonstrating that it has excellent thermal tolerance and stability.…”