This paper reviews the recent research progress in the hetero-nanostructure of silver nanoparticles on MOx (M=Mo, Ti and Si). It describes the general synthesis of hetero-nanostructure of silver nanoparticles on MOx, ...This paper reviews the recent research progress in the hetero-nanostructure of silver nanoparticles on MOx (M=Mo, Ti and Si). It describes the general synthesis of hetero-nanostructure of silver nanoparticles on MOx, and then outlines the interesting catalytic and sensing properties found in these hetero-nanostructures of silver nanoparticles on MOx.展开更多
A series of pyrochlore oxides,R2Ru2O7(R=Pr3+,Sm3+–Ho3+)were synthesized under mild hydrothermal conditions.All the samples crystallize in uniform octahedron characteristically.The products were characterized by powde...A series of pyrochlore oxides,R2Ru2O7(R=Pr3+,Sm3+–Ho3+)were synthesized under mild hydrothermal conditions.All the samples crystallize in uniform octahedron characteristically.The products were characterized by powder X-ray diffraction,scanning electron microscopy,energy-disperse X-ray spectroscopy,and dc susceptibility,and the factors that affected the crystallization were discussed.It was found that the purity of products depends strongly on the raw materials and the amount of alkalinity in the initial reaction mixtures.The ZFC and FC susceptibilities of all of the compounds R2Ru2O7 at low temperature were also measured and discussed.展开更多
Epitaxial growth of SmFeO3/SrRuO3 was achieved on SrTiO3 substrates by the pulsed laser deposition(PLD)method at 973 K under oxygen partial pressure of 12.5 Pa.No Fe2+leakage was detected in our SmFeO3 film.The remane...Epitaxial growth of SmFeO3/SrRuO3 was achieved on SrTiO3 substrates by the pulsed laser deposition(PLD)method at 973 K under oxygen partial pressure of 12.5 Pa.No Fe2+leakage was detected in our SmFeO3 film.The remanent polarization and coercive electric field of the thin film with a higher degree of orientation along(110)were 1.97μC/cm2 and 0.89×104 V/cm at room temperature,respectively.This film showed enhanced canted antiferromagnetism spin ordering compared with its corresponding powder materials.展开更多
A novel photovoltaic phenomenon of internal photoemission was found in a low cost manganite La0.62Ca0.29K0.09MnO3 （LCKMO）/zinc oxide （ZnO） heterojunction bilayers grown on ITO substrate by pulsed laser deposition ...A novel photovoltaic phenomenon of internal photoemission was found in a low cost manganite La0.62Ca0.29K0.09MnO3 （LCKMO）/zinc oxide （ZnO） heterojunction bilayers grown on ITO substrate by pulsed laser deposition （PLD） at relative low growth temperature. The heterostructure ITO/LCKMO/ZnO/A1 exhibits reproducible rectifying characteristics and light cur- rent under continuous laser irradiation of 2 = 325 nm. We report here the influence of LCKMO/ZnO bilayers＇ thickness on the electrical and photoelectric properties of the heterostructure at room temperature. The power conversion efficiency （PCE） is achieved when the LCKMO and ZnO layers are thin enough or the full space charge layer is sufficient. We obtained the maximum value of PCE of 0.0145% when the thicknesses of LCKMO and ZnO layers are 25 and 150 nm, respectively. The open circuit voltage is 0.04 V under this condition due to the internal photoemission.展开更多
基金supported by the National Natural Science Foundation of China (50972130, 20701033, 50772100 & 10874153)Qianjiang Talent Program of Zhejiang Province (QJD1002001)+1 种基金China Postdoctoral Science Foundation (201003048 & 20090450292)Open Project Program of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University
文摘This paper reviews the recent research progress in the hetero-nanostructure of silver nanoparticles on MOx (M=Mo, Ti and Si). It describes the general synthesis of hetero-nanostructure of silver nanoparticles on MOx, and then outlines the interesting catalytic and sensing properties found in these hetero-nanostructures of silver nanoparticles on MOx.
基金supported by the National Natural Science Foundation of China(90922034)
文摘A series of pyrochlore oxides,R2Ru2O7(R=Pr3+,Sm3+–Ho3+)were synthesized under mild hydrothermal conditions.All the samples crystallize in uniform octahedron characteristically.The products were characterized by powder X-ray diffraction,scanning electron microscopy,energy-disperse X-ray spectroscopy,and dc susceptibility,and the factors that affected the crystallization were discussed.It was found that the purity of products depends strongly on the raw materials and the amount of alkalinity in the initial reaction mixtures.The ZFC and FC susceptibilities of all of the compounds R2Ru2O7 at low temperature were also measured and discussed.
基金supported by the National Natural Science Foundation of China(90922034,21131002,and 21201075)the Specialized Research Fund for the Doctoral Program of Higher Education(20110061130005)
文摘Epitaxial growth of SmFeO3/SrRuO3 was achieved on SrTiO3 substrates by the pulsed laser deposition(PLD)method at 973 K under oxygen partial pressure of 12.5 Pa.No Fe2+leakage was detected in our SmFeO3 film.The remanent polarization and coercive electric field of the thin film with a higher degree of orientation along(110)were 1.97μC/cm2 and 0.89×104 V/cm at room temperature,respectively.This film showed enhanced canted antiferromagnetism spin ordering compared with its corresponding powder materials.
基金supported by the National Natural Science Foundation of China (No. 90922034 and No. 21131002)Specialized Research Fund for the Doctoral Program of Higher Education (No. 20110061130005)
文摘A novel photovoltaic phenomenon of internal photoemission was found in a low cost manganite La0.62Ca0.29K0.09MnO3 （LCKMO）/zinc oxide （ZnO） heterojunction bilayers grown on ITO substrate by pulsed laser deposition （PLD） at relative low growth temperature. The heterostructure ITO/LCKMO/ZnO/A1 exhibits reproducible rectifying characteristics and light cur- rent under continuous laser irradiation of 2 = 325 nm. We report here the influence of LCKMO/ZnO bilayers＇ thickness on the electrical and photoelectric properties of the heterostructure at room temperature. The power conversion efficiency （PCE） is achieved when the LCKMO and ZnO layers are thin enough or the full space charge layer is sufficient. We obtained the maximum value of PCE of 0.0145% when the thicknesses of LCKMO and ZnO layers are 25 and 150 nm, respectively. The open circuit voltage is 0.04 V under this condition due to the internal photoemission.
