Structure and Electrochemical Performance of Copper Doped Vanadium Oxide Thin Films Deposited by RF Magnetron Sputtering

采用射频磁控溅射技术在硅基底上分别制备了无掺杂和掺杂Cu的氧化钒薄膜.X射线衍射(Xrd)分析和扫描电子显微镜(SEM)观察表明,无掺杂的薄膜为多晶V2O5,掺杂Cu的薄膜为非晶态.X射线光电子能谱(XPS)分析结果表明,掺杂Cu的薄膜为铜钒氧化物膜,其中Cu离子表现为+2价,V离子为+4与+5价的混合价态.随着Cu掺杂量的增大,+4价V的含量增加.电化学测试结果表明,V2O5薄膜在掺杂Cu以后其放电容量有显著的提高,其中Cu2.1VO4.4薄膜在100次循环后容量还保持为83.4μA.H.CM-2.μM-1,表现出较高的放电容量和较好的循环性能.V2O5 was used as cathode material for all solid state thin film lithium-ion batteries,so as to improve electrochemical properties of V2O5 thin film material.In this paper,copper doped and undoped vanadium oxide films were deposited on silicon substrates by RF magnetron sputtering.The films were characterized by XRD,SEM and XPS.The results show that undoped thin films are polycrystalline-V2O5 and copper doped thin films are amorphous copper-vanadium oxide.The Cu ions are at +2 oxidation state,while the V ions are mixed with +4 and +5 oxidation state.With increasing the concentration of doped Cu,the ratio of V4+/V5+ increases.The electrochemical tests show that doping copper contribute to increase the capacity of V2O5 films.The film with a composition of Cu2.1VO4.4 indicate highest capacity among all samples and is observed better cycleability,which is 83.4 μA·h·cm-2·μm-1 up to 100 cycles.国家“九七三”计划(批准号:2002CB211807);国防基础研究项目(原国防科工委)(批准号:A14220080188-08);福建省化学电源科技创新平台(批准号:2006H0090)资

Analysis of the Microstructure of Down Conversion Transmission Material Applied to Agriculture

用高温固相反应法制备 Ca S∶ Cu,Eu农用光转换材料 ,运用 XRD和透射光谱技术对材料的微晶结构进行研究 ,获得 Ca S∶ Cu,Eu荧光材料构态与光转换效率关系的信息 ,为光转换材料及其相应的光转换农膜的迅速发展提供依据 .Luminescence material CaS∶Cu,Eu was prepard by the high temperature solid phase reaction technique and its micro structure was investigated by x ray diffraction and transmission spectrum techniques.The informations on the relation of the conversion efficiency with the bonding state of this material have been obtained. It provides the theoretical basis for the development of down conversion transmission material and corresponding curtain applied in agriculture.福建省自然科学基金资助项目!(E9810 0 0 1;A970 0 6

新疆北疆地区野生香料植物资源调查和开发利用研究

本课题完成了新疆北疆地区野生香料植物资源调查，提出了综合调查报告。对野生神香草开展引种驯化试验，研究探索人工驯化和栽培野生神香草的可能性和总结提出了栽培技术，首次完成了野生野生神香草引种驯化试验研究。提出了兵团野生香料植物开发利用规划的设想。对于进一步保护、开发和利用新疆野生香料植物资源，开发新的经济作物种类，形成新的经济增长点具有极大的实用意义，有广阔的应用前景

Structure and Electrochemical Performance of Copper Doped Vanadium Oxide Thin Films Deposited by RF Magnetron Sputtering

V2O5 was used as cathode material for all solid state thin film lithium-Ion batteries, so as to improve electrochemical properties of V2O5 thin film material. In this paper, copper doped and undoped vanadium oxide films were deposited on silicon substrates by RF magnetron sputtering. The films were characterized by XRD, SEM and XPS. The results show that undoped thin films are polyerystalline-V2O5 and copper doped thin films are amorphous copper-vanadium oxide. The Cu ions are at +2 oxidation state, while the V ions are mixed with + 4 and + 5 oxidation state. With increasing the concentration of doped Cu, the ratio of V4+/V5+ increases. The electrochemical tests show that doping copper contribute to increase the capacity of V2O5 films' The film with a composition of Cu2.1VO4.4 indicate highest capacity among all samples and is observed better cycleability, which is 83. 4 mu A.h.cm(-2) mu M-1 up to 100 cycles