Organic Cation Design of Manganese Halide Hybrids Glass toward Low‐Temperature Integrated Efficient, Scaling, and Reproducible X‐Ray Detector

Abstract

Zero‐dimensional (0D) structure‐based manganese metal halides (MHs) are believed to be the most promising candidates for the next‐generation X‐ray scintillators due to their intense radioluminescence and environmental friendliness. However, low‐temperature (<180 °C), large‐area integration with more efficient X‐ray detection remains a tremendous challenge. Herein, from the perspective of cation (ionic liquids) structure design, the basic physical parameters of 0D MHs are regulated. And the calculations and experimental results demonstrate larger‐size cations that induce lower melting temperatures, larger exciton‐binding energies, larger ion migration energy, and tunable hardness, which are most desirable for MHscintillators. As a result, the champion materialHTP2MnBr4is achieved as glassy transparency wafer by low‐temperature (165 °C) melt‐quenching. Its application to X‐ray imaging features high spatial resolution (17.28 lp mm−1), scalability (>30 × 30 cm2), and integration with strong coupling force. Furthermore, HTP2MnBr4 glass with reproducible properties demonstrates a high light yield (38 000 photon MeV−1), excellent irradiation stability, and low detection limit (0.13 µGy s−1). The authors believe this work will provide guidance for MHscintillators to further commercial applications.

Crystal-glass phase transition enabling reversible fluorescence switching in zero-dimensional antimony halides

“…The fluorescence lifetime of the glasses is comparable to that of the crystals (Fig. 3), and the (MEP) 2 SbCl 5 glass exhibits the largest PLQY of 60% among the four glasses, which is superior to some of the other OIMH glasses reported previously 6,10,26 (Fig. S9, ESI†).…”

Multiphase Transformation in Hybrid Copper(I)-Based Halides Enable Improved X-ray Scintillation and Real-Time Imaging

“…Generally, the design of organic cations in 0D Mn-based hybrid metal halides revealed that larger-sized cations lead to lower melting temperatures. , However, the synergistic effect of inorganic anion on adjusting luminescence properties and modulating glass formation of 0D metal halides toward low-temperature vitrification remains unclear. Herein, we synthesize 0D Cu(I)-based hybrid metal halides with large ionic volume and low melting point by structural design and obtain glass-ceramic scintillator materials with high stability and excellent scintillation performance by vitrification and glass crystallization strategies.…”

Near-unity PLQY and high anti-thermal quenching red luminescence from one-dimensional hybrid manganese chloride for efficient and stable white light-emitting diodes

“…25–27 Up to now, the researchers have successfully synthesized a range of luminescent manganese halides by modulating the composition and structure, which provides new options for optoelectronics applications. 28–31 However, only a few manganese halide broad-band red emitters are suitable for SSL. On the other hand, the stability of a manganese halide red emitter is an important parameter for evaluating its practical application.…”