Scaling of complementary metal-oxide-semiconductor technology nodes using conventional semiconducting materials is slowing down.The development of semiconductor technology with new materials and new concepts has becom...Scaling of complementary metal-oxide-semiconductor technology nodes using conventional semiconducting materials is slowing down.The development of semiconductor technology with new materials and new concepts has become an important focus of scientific and industrial research.In recent years,emerging ambipolar two-dimensional(2D)materials-based reconfigurable devices have shown their potential in high-integration,multifunctional circuits and have begun to attract the attention of researchers.Here,we summarize the latest progress in the field concerning ambipolar 2D materials-based reconfigurable devices.Firstly,we introduce the basic properties and preparation methods of ambipolar 2D materials.Secondly,we discuss the latest applications of reconfigurable devices based on ambipolar 2D materials.Furthermore,we also introduce the current research status of ambipolar material devices in large-scale integration.Finally,we analyze the challenges faced during the development of ambipolar 2D materials-based reconfigurable devices and provide prospects for their future development.展开更多
Due to the influence of quantum confinementeffect, two-dimensional (2D) materials like graphene exhibitunique and exceptional properties, highlighting the significance of low-dimensional materials in fundamental resea...Due to the influence of quantum confinementeffect, two-dimensional (2D) materials like graphene exhibitunique and exceptional properties, highlighting the significance of low-dimensional materials in fundamental research and practical applications. This has led to highexpectations for one-dimensional (1D) atomic chain materialswith even lower dimensions. Compared with 2D materials,single 1D atomic chains reach their physical limits in bothdimensions, resulting in a more pronounced quantum confinement effect that gives rise to unexpected physical phenomena and will establish a new field for exploration. Herein,we review the emerging field concerning 1D van der Waals(vdW) atomic chains. We first summarize the various typesand structures of their bulk of the 1D vdW materials. Subsequently,we discuss the methods employed for their preparation and characterization. Finally, we analyze the challengesfaced during the development of 1D atomic chains and provide prospects for their future development.展开更多
Two-dimensional(2D)atomically thin quantum dots(QDs)possess extraordinary electrical and optical properties.However,fabricating high quality 2D QDs via a universal and reliable technique remains a challenge.Here,we re...Two-dimensional(2D)atomically thin quantum dots(QDs)possess extraordinary electrical and optical properties.However,fabricating high quality 2D QDs via a universal and reliable technique remains a challenge.Here,we report a simple strategy to prepare high quality,monolayer single crystal 2D QDs via ultrathin cutting 2D bulk single crystals by ultramicrotome,followed by an exfoliation process.The as-prepared 2D QDs have pristine surface,high quality,high monolayer yield and high photoluminescence quantum yield(the highest photoluminescence quantum yield of WS2 is18%),which can be used as promising,low toxic,biocompatible,and good cell-permeability fluorescent labeling agents for in vitro imaging.展开更多
基金supported by the National Natural Science Foundation of China(22175184 and 22105207)the CAS Project for Young Scientists in Basic Research(YSBR-053)+1 种基金the Strategic Priority Research Programme of the Chinese Academy of Sciences(XDB0520202)the CAS Project for Young Scientists in Interdisciplinary Research.
文摘Scaling of complementary metal-oxide-semiconductor technology nodes using conventional semiconducting materials is slowing down.The development of semiconductor technology with new materials and new concepts has become an important focus of scientific and industrial research.In recent years,emerging ambipolar two-dimensional(2D)materials-based reconfigurable devices have shown their potential in high-integration,multifunctional circuits and have begun to attract the attention of researchers.Here,we summarize the latest progress in the field concerning ambipolar 2D materials-based reconfigurable devices.Firstly,we introduce the basic properties and preparation methods of ambipolar 2D materials.Secondly,we discuss the latest applications of reconfigurable devices based on ambipolar 2D materials.Furthermore,we also introduce the current research status of ambipolar material devices in large-scale integration.Finally,we analyze the challenges faced during the development of ambipolar 2D materials-based reconfigurable devices and provide prospects for their future development.
基金supported by the National Natural Science Foundation of China (22175184 and 22105207)the Chinese Academy of Sciences (CAS) Project for Young Scientists in Basic Research (YSBR053)+1 种基金the Strategic Priority Research Programme of the Chinese Academy of Sciences (XDB0520202)the CAS Project for Young Scientists in Interdisciplinary Research。
文摘Due to the influence of quantum confinementeffect, two-dimensional (2D) materials like graphene exhibitunique and exceptional properties, highlighting the significance of low-dimensional materials in fundamental research and practical applications. This has led to highexpectations for one-dimensional (1D) atomic chain materialswith even lower dimensions. Compared with 2D materials,single 1D atomic chains reach their physical limits in bothdimensions, resulting in a more pronounced quantum confinement effect that gives rise to unexpected physical phenomena and will establish a new field for exploration. Herein,we review the emerging field concerning 1D van der Waals(vdW) atomic chains. We first summarize the various typesand structures of their bulk of the 1D vdW materials. Subsequently,we discuss the methods employed for their preparation and characterization. Finally, we analyze the challengesfaced during the development of 1D atomic chains and provide prospects for their future development.
基金This work was supported by the National Natural Science Foundation of China(21573253)the National Key Research and Developmet Program of China(2017YFA0204700)the Strategic Priority Research Programme of the Chinese Academy of Sciences(XDB12010000).
文摘Two-dimensional(2D)atomically thin quantum dots(QDs)possess extraordinary electrical and optical properties.However,fabricating high quality 2D QDs via a universal and reliable technique remains a challenge.Here,we report a simple strategy to prepare high quality,monolayer single crystal 2D QDs via ultrathin cutting 2D bulk single crystals by ultramicrotome,followed by an exfoliation process.The as-prepared 2D QDs have pristine surface,high quality,high monolayer yield and high photoluminescence quantum yield(the highest photoluminescence quantum yield of WS2 is18%),which can be used as promising,low toxic,biocompatible,and good cell-permeability fluorescent labeling agents for in vitro imaging.
