A Melt‐Quenched Luminescent Glass of an Organic–Inorganic Manganese Halide as a Large‐Area Scintillator for Radiation Detection

Abstract

Glass is a group of materials with appealing qualities, including simplicity in fabrication, durability, and high transparency, and they play a crucial role in the optics field. In this paper, a new organic-inorganic metal halide luminescent glass exhibiting > 78 % transmittance at 506-800 nm range together with a high photoluminescence quantum yield (PLQY) of 28.5 % is reported through a low-temperature melt-quenching approach of pre-synthesized (HTPP) 2 MnBr 4 (HTPP = hexyltriphenylphosphonium) single crystal. Temperature-dependent X-ray diffraction, polarizing microscopy, and molecular dynamics simulations were combined to investigate the glass-crystal interconversion process, revealing the disordered nature of the glassy state.Benefiting from the transparent nature, (HTPP) 2 MnBr 4 glass yields an outstanding spatial resolution of 10 lp mm À 1 for X-ray imaging. The superb optical properties and facility of large-scale fabrication distinguish the organic-inorganic metal halide glass as a highly promising class of materials for optical devices.

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

“…To circumvent the above limitations of MHs in X-ray imaging applications, zero-dimensional (0D, featured as MHs polyhedras are independently embedded as "guests" in the organic "host" matrix) MHs were applied to X-ray imaging and showed great application potential and promising prospects. [30][31][32][33][34] (1) 0D MHs are defined from an electronic structure perspective, leading to stronger exciton localization effects and higher radioluminescence efficiency; (2) Diverse preparations can be easily achieved by designing organic or metal cations (Mn, Cu, Sn, In, Zn, Sb, etc. ), which can improve stability (organic hydrophobicity) and reduce toxicity.…”

Two Organic–Inorganic Manganese(II) Halide Hybrids Showing Compelling Photo- and Mechanoluminescence as well as Rewritable Anticounterfeiting Printing

“…Organic–inorganic manganese­(II) halide hybrids (OIMHs) with intriguing photo- and mechanoluminescence (PL and ML) have attracted the interest of researchers recently due to their potential applications in lighting, display, anticounterfeiting, X-ray scintillator, and sensing. − Various parameters of OIMHs, such as color emission, quantum yield, − emission bandwidth, and photostability, are considered to be vital for future lighting and display applications. All of the parameters mentioned above have a strong correlation with the organic part. − For example, multicolor emission was realized by Gao via the combination of a blue-emissive organic cation with manganese­(II) halide .…”

Macroscopic Assembly of Chiral Hydrogen‐bonded Metal‐free Supramolecular Glasses for Enhanced Color‐tunable Ultralong Room Temperature Phosphorescence

“…For example, the doping of rare‐earth ions into inorganic glasses has been extensively used in optical fibers and lasers for information communications [18, 19] . The heavy metals (e.g., Cr 3+ , Co 2+ , Mn 2+ ) have been employed as luminescent centers in photofunctional glasses [20–22] . To date, as an alternative to the high‐cost noble metals and rare‐earth components, it is still highly desirable to fabricate new types of super‐sized metal‐free glasses towards novel photonic applications.…”

“…[18,19] The heavy metals (e.g., Cr 3 + , Co 2 + , Mn 2 + ) have been employed as luminescent centers in photofunctional glasses. [20][21][22] To date, as an alternative to the high-cost noble metals and rare-earth components, it is still highly desirable to fabricate new types of super-sized metal-free glasses towards novel photonic applications. Furthermore, to the best of our knowledge, most of current glass preparation methods (such as vapor deposition and melting-quenching processes) are time-and energy-consuming, [14][15][16][17] and the glass formation is usually under harsh conditions (e.g., at high temperature), which may cause the degradation of molecular systems and quench of luminescence.…”