The advancement of contemporary X-ray imaging heavily depends on discovering scintillators that possess high sensitivity,robust stability,low toxicity,and a uniform size distribution.Despite significant progress in th...The advancement of contemporary X-ray imaging heavily depends on discovering scintillators that possess high sensitivity,robust stability,low toxicity,and a uniform size distribution.Despite significant progress in this field,the discovery of a material that satisfies all of these criteria remains a challenge.In this study,we report the synthesis of monodisperse copper(Ⅰ)-iodide cluster microcubes as a new class of X-ray scintillators.The as-prepared microcubes exhibit remarkable sensitivity to X-rays and exceptional stability under moisture and X-ray exposure.The uniform size distribution and high scintillation performance of the copper(Ⅰ)-iodide cluster microcubes make them suitable for the fabrication of large-area,flexible scintillating films for X-ray imaging applications in both static and dynamic settings.展开更多
X-ray imaging is a low-cost,powerful technology that has been extensively used in medical diagnosis and industrial nondestructive inspection.The ability of X-rays to penetrate through the body presents great advances ...X-ray imaging is a low-cost,powerful technology that has been extensively used in medical diagnosis and industrial nondestructive inspection.The ability of X-rays to penetrate through the body presents great advances for noninvasive imaging of its internal structure.In particular,the technological importance of X-ray imaging has led to the rapid development of highperformance X-ray detectors and the associated imaging applications.Here,we present an overview of the recent development of X-ray imaging-related technologies since the discovery of X-rays in the 1890s and discuss the fundamental mechanism of diverse X-ray imaging instruments,as well as their advantages and disadvantages on X-ray imaging performance.We also highlight various applications of advanced X-ray imaging in a diversity of fields.We further discuss future research directions and challenges in developing advanced next-generation materials that are crucial to the fabrication of flexible,low-dose,highresolution X-ray imaging detectors.展开更多
The ability of carbon dots(CDs)to emit afterglow emission in addition to fluorescence in response to UV-to-visible excitation allows them to be a new class of luminescent materials.When compared with traditional organ...The ability of carbon dots(CDs)to emit afterglow emission in addition to fluorescence in response to UV-to-visible excitation allows them to be a new class of luminescent materials.When compared with traditional organic or inorganic afterglow materials,CDs have a set of advantages,including small size,ease of synthesis,and absence of highly toxic metal ions.In addition,high dependence of their afterglow color output on temperature,excitation wavelength,and aggregation degrees adds remarkable flexibility in the creation of multimode luminescence of CDs without the need for changing their intrinsic attributes.These characteristics make CDs particularly attractive in the fields of sensing,anticounterfeiting,and data encryption.In this review,we first describe the general attributes of afterglow CDs and their fundamental afterglow mechanism.We then highlight recent strategic advances in the generation or activation of the afterglow luminescence of CDs.Considerable emphasis is placed on the summarization of their emergent afterglow properties in response to external stimulation.We further highlight the emerging applications of afterglow CDs on the basis of their unique optical features and present the key challenges needed to be addressed before the realization of their full practical utility.展开更多
X-ray imaging is a low-cost,powerful technology that has been extensively used in medical diagnosis and industrial nondestructive inspection.The ability of X-rays to penetrate through the body presents great advances ...X-ray imaging is a low-cost,powerful technology that has been extensively used in medical diagnosis and industrial nondestructive inspection.The ability of X-rays to penetrate through the body presents great advances for noninvasive imaging of its internal structure.In particular,the technological importance of X-ray imaging has led to the rapid development of highperformance X-ray detectors and the associated imaging applications.Here,we present an overview of the recent development of X-ray imaging-related technologies since the discovery of X-rays in the 1890s and discuss the fundamental mechanism of diverse X-ray imaging instruments,as well as their advantages and disadvantages on X-ray imaging performance.We also highlight various applications of advanced X-ray imaging in a diversity of fields.We further discuss future research directions and challenges in developing advanced next-generation materials that are crucial to the fabrication of flexible,low-dose,highresolution X-ray imaging detectors.展开更多
基金This work is supported by the National Key and Program of China(grant number 2020YFA0709900)the National Natural Science Foundation of China(grant numbers 22075228 and 62134007)+1 种基金the Joint Research Funds of the Department of Science&Technology of Shaanxi Province and Northwestern Polytechnical University(grant number 2020GXLH-Z011)the Fundamental Research Funds for the Central Universities(grant numbers 0515023GH0202078 and 0515023SH0201078).
文摘The advancement of contemporary X-ray imaging heavily depends on discovering scintillators that possess high sensitivity,robust stability,low toxicity,and a uniform size distribution.Despite significant progress in this field,the discovery of a material that satisfies all of these criteria remains a challenge.In this study,we report the synthesis of monodisperse copper(Ⅰ)-iodide cluster microcubes as a new class of X-ray scintillators.The as-prepared microcubes exhibit remarkable sensitivity to X-rays and exceptional stability under moisture and X-ray exposure.The uniform size distribution and high scintillation performance of the copper(Ⅰ)-iodide cluster microcubes make them suitable for the fabrication of large-area,flexible scintillating films for X-ray imaging applications in both static and dynamic settings.
基金supported by the National Key Research&Development Program of China(2020YFA0709900,2020YFA0210800)the National Natural Science Foundation of China(21635002,62134003,22027805,21705025,22077101,22104016)+6 种基金the Major Project of Science and Technology of Fujian Province(2020HZ06006)the Joint Research Funds of Department of Science&Technology of Shaanxi Province and Northwestern Polytechnical University(2020GXLH-Z-008,2020GXLH-Z-021)Natural Science Foundation of Ningbo(202003N4065)Key Research and Development Program of Shaanxi(2020ZDLGY13-04)China-Sweden Joint Mobility Project(51811530018)the Special Funded Project of China Postdoctoral Science Foundation(2021T140117)Fundamental Research Funds for the Central Universities,and Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China(2021ZZ128).
文摘X-ray imaging is a low-cost,powerful technology that has been extensively used in medical diagnosis and industrial nondestructive inspection.The ability of X-rays to penetrate through the body presents great advances for noninvasive imaging of its internal structure.In particular,the technological importance of X-ray imaging has led to the rapid development of highperformance X-ray detectors and the associated imaging applications.Here,we present an overview of the recent development of X-ray imaging-related technologies since the discovery of X-rays in the 1890s and discuss the fundamental mechanism of diverse X-ray imaging instruments,as well as their advantages and disadvantages on X-ray imaging performance.We also highlight various applications of advanced X-ray imaging in a diversity of fields.We further discuss future research directions and challenges in developing advanced next-generation materials that are crucial to the fabrication of flexible,low-dose,highresolution X-ray imaging detectors.
基金supported by the National Natural Science Foundation of China(No.22075228)the Fundamental Research Funds for the Central Universities(No.05150-19SH020207)+1 种基金the Joint Research Funds of Science and Tech-nology Department of Shaanxi Province and Northwestern Polytechnical University(No.2020GXLH-Z011)the Project for Graduate Innovation Team of Northwest Poly-technical University(02020-20GH010205).
文摘The ability of carbon dots(CDs)to emit afterglow emission in addition to fluorescence in response to UV-to-visible excitation allows them to be a new class of luminescent materials.When compared with traditional organic or inorganic afterglow materials,CDs have a set of advantages,including small size,ease of synthesis,and absence of highly toxic metal ions.In addition,high dependence of their afterglow color output on temperature,excitation wavelength,and aggregation degrees adds remarkable flexibility in the creation of multimode luminescence of CDs without the need for changing their intrinsic attributes.These characteristics make CDs particularly attractive in the fields of sensing,anticounterfeiting,and data encryption.In this review,we first describe the general attributes of afterglow CDs and their fundamental afterglow mechanism.We then highlight recent strategic advances in the generation or activation of the afterglow luminescence of CDs.Considerable emphasis is placed on the summarization of their emergent afterglow properties in response to external stimulation.We further highlight the emerging applications of afterglow CDs on the basis of their unique optical features and present the key challenges needed to be addressed before the realization of their full practical utility.
基金supported by the National Key Research&Development Program of China(2020YFA0709900,2020YFA0210800)the National Natural Science Foundation of China(21635002,62134003,22027805,21705025,22077101,22104016)+6 种基金the Major Project of Science and Technology of Fujian Province(2020HZ06006)the Joint Research Funds of Department of Science&Technology of Shaanxi Province and Northwestern Polytechnical University(2020GXLH-Z-008,2020GXLH-Z-021)Natural Science Foundation of Ningbo(202003N4065)Key Research and Development Program of Shaanxi(2020ZDLGY13-04)China-Sweden Joint Mobility Project(51811530018)the Special Funded Project of China Postdoctoral Science Foundation(2021T140117)Fundamental Research Funds for the Central Universities,and Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China(2021ZZ128).
文摘X-ray imaging is a low-cost,powerful technology that has been extensively used in medical diagnosis and industrial nondestructive inspection.The ability of X-rays to penetrate through the body presents great advances for noninvasive imaging of its internal structure.In particular,the technological importance of X-ray imaging has led to the rapid development of highperformance X-ray detectors and the associated imaging applications.Here,we present an overview of the recent development of X-ray imaging-related technologies since the discovery of X-rays in the 1890s and discuss the fundamental mechanism of diverse X-ray imaging instruments,as well as their advantages and disadvantages on X-ray imaging performance.We also highlight various applications of advanced X-ray imaging in a diversity of fields.We further discuss future research directions and challenges in developing advanced next-generation materials that are crucial to the fabrication of flexible,low-dose,highresolution X-ray imaging detectors.