He Zi-Lin, Luo Jian-Bin, Chen Jing-Hua, Wei Jun-Hua, Miao Xiao-He, Zhang Zhi-Zhong, Peng Qing-Peng, Guo Xiu-Xian, Kuang Dai-Bin
Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, GBRCE for Functional Molecular Engineering, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou 510275, China.
Zhejiang Key Laboratory of Precise Synthesis of Functional Molecules, Instrumentation and Service Center for Molecular Sciences and Research Center for Industries of the Future, Westlake University, 600 Dunyu Road, Hangzhou 310030, China.
Sci Adv. 2025 May 30;11(22):eadu1982. doi: 10.1126/sciadv.adu1982. Epub 2025 May 28.
The development of melt-quenched organic-inorganic metal halide (OIMH) glasses is hampered by the scarcity of suitable organic molten salts and low luminescence efficiency. Herein, we developed a series of two-component OIMH amorphous glasses consisting of (TPG)MnBr (TPG, triphenylguanidium) and AMnBr (A, organic molten cation), named α(ATPG). The high glass-formation ability (GFA) in (TPG)MnBr provides a platform to modulate the crystallization of another molten AMnBr by homogeneous melting. Moreover, the GFA modulation allows controlled in situ crystallization of α(ATPG) and the formation of transparent glass-crystal composites with higher luminescence efficiency. For instance, the light yield of α(PTPTPG) (PTP, propyltriphenylphosphonium) is improved from 18,800 to 35,140 photons per mega-electron volt after annealing at 55°C, showing huge application potentials in radiation detection and high-resolution x-ray imaging. The present research would inspire further exploration of high-performance OIMH glasses and facilitate multiple applications in advanced photonics such as scintillators, photoconductive fibers, light-emitting diodes, and laser crystals.
合适的有机熔盐稀缺以及发光效率低阻碍了熔融淬火有机-无机金属卤化物（OIMH）玻璃的发展。在此，我们开发了一系列由（TPG）MnBr（TPG，三苯基胍）和AMnBr（A，有机熔盐阳离子）组成的双组分OIMH非晶玻璃，命名为α(ATPG)。（TPG）MnBr中高的玻璃形成能力（GFA）为通过均匀熔化调节另一种熔融AMnBr的结晶提供了一个平台。此外，GFA调节允许α(ATPG)进行可控的原位结晶，并形成具有更高发光效率的透明玻璃-晶体复合材料。例如，α(PTPTPG)（PTP，丙基三苯基鏻）在55°C退火后，光产额从每兆电子伏特18,800个光子提高到35,140个光子，在辐射检测和高分辨率x射线成像中显示出巨大的应用潜力。本研究将激发对高性能OIMH玻璃的进一步探索，并促进其在闪烁体、光电导纤维、发光二极管和激光晶体等先进光子学中的多种应用。
