The relentless pursuit of advanced X-ray detection technologies has been significantly bolstered by the emergence of metal halides perovskites(MHPs)and their derivatives,which possess remarkable light yield and X-ray ...The relentless pursuit of advanced X-ray detection technologies has been significantly bolstered by the emergence of metal halides perovskites(MHPs)and their derivatives,which possess remarkable light yield and X-ray sensitivity.This comprehensive review delves into cutting-edge approaches for optimizing MHP scintillators performances by enhancing intrinsic physical properties and employing engineering radioluminescent(RL)light strategies,underscoring their potential for developing materials with superior high-resolution X-ray detection and imaging capabilities.We initially explore into recent research focused on strategies to effectively engineer the intrinsic physical properties of MHP scintillators,including light yield and response times.Additionally,we explore innovative engineering strategies involving stacked structures,waveguide effects,chiral circularly polarized luminescence,increased transparency,and the fabrication of flexile MHP scintillators,all of which effectively manage the RL light to achieve high-resolution and high-contrast X-ray imaging.Finally,we provide a roadmap for advancing next-generation MHP scintillators,highlighting their transformative potential in high-performance X-ray detection systems.展开更多
Ultralong organic phosphorescence(UOP)materials have garnered significant interest for applications in advanced optical recording and information encryption.However,it remains a formidable challenge achieving manipula...Ultralong organic phosphorescence(UOP)materials have garnered significant interest for applications in advanced optical recording and information encryption.However,it remains a formidable challenge achieving manipulated phosphorescence due to the limited color channels and poorly populated triplet energy levels.Herein,we report a novel multiresponsive organic phosphorescence material,in which the phosphorescence color can be dynamically tuned with stimuli such as radiation duration,concentration,excitation wavelength,time,and temperature.The material is based on the confined 7H-benzo[c]carbazole(BCz)molecules in the polymermatrix,which is achieved through the size-dependent cluster-triggered emission(CTE)mechanism.The BCz molecules form isolated molecules and different-sized clusters in the matrix,resulting in multiple luminescent centers with different energy levels and phosphorescence lifetimes.Throughmatrix confinement effects,the activation states of the monomers and multiple clusters could be precisely modulated,resulting in temperature-controlled tunable orange-to-green variations.Furthermore,the multiresponsive properties of the material have been used in both civil and military applications through sophisticated mathematical modeling.This work potentially proposes a guiding strategy for the development of multiresponsive UOP materials based on CTE molecules.展开更多
基金supported by the National Nature Science Foundation of China(NSFC)(U2241236,1220041913,52473253)the National Key Research and Development Program of China(2022ZDZX0007)+1 种基金Fundamental Research Open Subject Grant Program of Yantai Advanced Materials and Green Manufacturing Laboratory of Shandong Province(AMGM2024F15)Yunnan Major Scientific and Technological Projects(202402AB080011).
文摘The relentless pursuit of advanced X-ray detection technologies has been significantly bolstered by the emergence of metal halides perovskites(MHPs)and their derivatives,which possess remarkable light yield and X-ray sensitivity.This comprehensive review delves into cutting-edge approaches for optimizing MHP scintillators performances by enhancing intrinsic physical properties and employing engineering radioluminescent(RL)light strategies,underscoring their potential for developing materials with superior high-resolution X-ray detection and imaging capabilities.We initially explore into recent research focused on strategies to effectively engineer the intrinsic physical properties of MHP scintillators,including light yield and response times.Additionally,we explore innovative engineering strategies involving stacked structures,waveguide effects,chiral circularly polarized luminescence,increased transparency,and the fabrication of flexile MHP scintillators,all of which effectively manage the RL light to achieve high-resolution and high-contrast X-ray imaging.Finally,we provide a roadmap for advancing next-generation MHP scintillators,highlighting their transformative potential in high-performance X-ray detection systems.
基金supported by the National Natural Science Foundation of China(NSFC)(U2241236,1220041913,52473253)the National Key Research and Development Program of China(2022ZDZX0007)+2 种基金Young Elite Scientists Sponsorship Program by CAST(2022QNRC001)Yunnan Major Scientific and Technological Projects(202402AB080011)the Science Fund of Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai(AMGM2024F15).
文摘Ultralong organic phosphorescence(UOP)materials have garnered significant interest for applications in advanced optical recording and information encryption.However,it remains a formidable challenge achieving manipulated phosphorescence due to the limited color channels and poorly populated triplet energy levels.Herein,we report a novel multiresponsive organic phosphorescence material,in which the phosphorescence color can be dynamically tuned with stimuli such as radiation duration,concentration,excitation wavelength,time,and temperature.The material is based on the confined 7H-benzo[c]carbazole(BCz)molecules in the polymermatrix,which is achieved through the size-dependent cluster-triggered emission(CTE)mechanism.The BCz molecules form isolated molecules and different-sized clusters in the matrix,resulting in multiple luminescent centers with different energy levels and phosphorescence lifetimes.Throughmatrix confinement effects,the activation states of the monomers and multiple clusters could be precisely modulated,resulting in temperature-controlled tunable orange-to-green variations.Furthermore,the multiresponsive properties of the material have been used in both civil and military applications through sophisticated mathematical modeling.This work potentially proposes a guiding strategy for the development of multiresponsive UOP materials based on CTE molecules.
