Metal halide perovskites(HPVs)have been greatly developed over the last decade,with various compositions,dimensionalities,and morphologies,leading to an emergence of high-performance photovoltaic and optoelectronic ap...Metal halide perovskites(HPVs)have been greatly developed over the last decade,with various compositions,dimensionalities,and morphologies,leading to an emergence of high-performance photovoltaic and optoelectronic applications.Despite the tremendous progress made,challenges remain,which calls for a better understanding of the fundamental mechanisms.Pressure,a thermodynamic variable,provides a powerful tool to tune materials’structures and properties.In combination with in situ characterization methods,high-pressure research could provide a better fundamental understanding.In this review,we summarize the recent studies of the dramatic,pressure-induced changes that occur in HPVs,particularly the enhanced and emergent properties induced under high pressure and their structure-property relationships.We first introduce the characteristics of HPVs and the basic knowledge of high-pressure techniques,as well as in situ characterization methods.We then discuss the effects of pressure on HPVs with different compositions,dimensionalities,and morphologies,and underline their common features and anomalous behaviors.In the last section,we highlight the main challenges and provide suggestions for possible future research on high-pressure HPVs.展开更多
Extraordinary electronic properties can emerge at the interfaces between metal oxides[1-10].Interfacial behaviors have enabled a wide range of applications from electronic communication,energy conversion and storage,t...Extraordinary electronic properties can emerge at the interfaces between metal oxides[1-10].Interfacial behaviors have enabled a wide range of applications from electronic communication,energy conversion and storage,to data processing and memory.In recent years,unprecedented progress has been made in exploring and exploiting the emergent and/or enhanced properties of these interfaces,and it is becoming clear that interface engineering provides a new opportunity for advanced devices in the near future.The capability of using interfaces to manipulate material properties offers an effective means to achieve intriguing phenomena.展开更多
文摘Metal halide perovskites(HPVs)have been greatly developed over the last decade,with various compositions,dimensionalities,and morphologies,leading to an emergence of high-performance photovoltaic and optoelectronic applications.Despite the tremendous progress made,challenges remain,which calls for a better understanding of the fundamental mechanisms.Pressure,a thermodynamic variable,provides a powerful tool to tune materials’structures and properties.In combination with in situ characterization methods,high-pressure research could provide a better fundamental understanding.In this review,we summarize the recent studies of the dramatic,pressure-induced changes that occur in HPVs,particularly the enhanced and emergent properties induced under high pressure and their structure-property relationships.We first introduce the characteristics of HPVs and the basic knowledge of high-pressure techniques,as well as in situ characterization methods.We then discuss the effects of pressure on HPVs with different compositions,dimensionalities,and morphologies,and underline their common features and anomalous behaviors.In the last section,we highlight the main challenges and provide suggestions for possible future research on high-pressure HPVs.
基金supported by the National Nature Science Foundation of China(U1530402,17N1041)the CINT User Program+2 种基金the support by the U.S.National Science Foundation(ECCS-1902623)the support by the National Nature Science Foundation of China(51728202)the Center for Nanoscale Materials,an Office of Science user facility,supported by the U.S.Department of Energy(DE-AC02-06CH11357)
文摘Extraordinary electronic properties can emerge at the interfaces between metal oxides[1-10].Interfacial behaviors have enabled a wide range of applications from electronic communication,energy conversion and storage,to data processing and memory.In recent years,unprecedented progress has been made in exploring and exploiting the emergent and/or enhanced properties of these interfaces,and it is becoming clear that interface engineering provides a new opportunity for advanced devices in the near future.The capability of using interfaces to manipulate material properties offers an effective means to achieve intriguing phenomena.
