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Fine controllable blue emission and its mechanism in Ce3+-doped orthosilicate solid solution phosphors for different plant growthsYaru Yang,Yiting Lin,Yue Han,Zhongxian Qiu,Wenli Zhou,Jilin Zhang... CamSr2-m-nBanSiO4:Ce3+,Li+(CSBS:Ce3+)were synthesized by a high temperature solid-state reaction. The crystal field splitting and the centroid shift from the free ion energy of 5 d configuration were......
Effect of Li+ ion concentration on upconversion emission and temperature sensing behavior of La2O3:Er3+ phosphorsGuangrun Chen,Ruoshan Lei,Shiqing Xu,Huanping Wang,Shilong Zhao,Feifei Huang,Yin... parameter of La2O3 host and increase the particle size of the samples. The optical investigation shows that co-doping of Li+ ions can enhance the upconversion emission of Er3+ ions in La2O3 matrix......
Fine controllable blue emission and its mechanism in Ce3+-doped orthosilicate solid solution phosphors for different plant growthsYaru Yang,Yiting Lin,Yue Han,Zhongxian Qiu,Wenli Zhou,Jilin Zhang... CamSr2-m-nBanSiO4:Ce3+,Li+(CSBS:Ce3+)were synthesized by a high temperature solid-state reaction. The crystal field splitting and the centroid shift from the free ion energy of 5 d configuration were......
Field Application of Automated Power Arc Spraying System on Steel Bridge Deck SUN Zhi1,PANG Xu-nan1,YI Chun-long1,SUO Shuang-fu2 (1.China University of Mining & Technology, Beijing 100084, China... for bridge engineers for many years. An automated power arc spraying system was first designed and field applied to coating the deck of Wuhan Junshan Yangtze River Bridge in high efficiency. This steel bridge......
Phase field modeling of dendrite growth Chengzhi WANG1,Yiyi LI2,Yutuo ZHANG1,Dianzhong LI2 (1.Shenyang Ligong University,Shenyang 110168,China;2.Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China) Abstract:Single dendrite and multi-dendrite growth for A1-2 mol pct Si alloy during isothermal solidification are simulated by phase field method. In the case of single......
ZnO纳米材料制备及其场发射性能的研究 张永爱1,郭太良1,覃华芳1,林志贤1 (1.福州大学,物理与信息工程学院,福建,福州,350002) 摘要:采用水热法制备形貌和尺寸各异的纳米ZnO材料.用X射线衍射分析仪(XRD)和扫描电子显微镜(SEM)测试产物结构和表面形貌,分析影响纳米ZnO材料生长的因素,探讨纳米ZnO的生长机理.研究了各种形貌ZnO阵列的场致发射特性.实验结果表明,在各种ZnO纳米结构中,纳米管的场致发射性能最好,其最大电流密度可达到0.2mA/cm~2,开启场强2.5V/μm,为寻求良好场发射性能的ZnO纳米材料提供了一个可行的途径. 关键词:ZnO纳米材料; 水热法; 表面形貌; 场发射性能; ZnO nanomaterial; hydrothermal method; surface morphology; field emission......
的场发射性能最优,ITO透明导电薄膜衬底电极CNT阴极次之,Ag浆厚膜导电衬底电极CNT阴极最差,并根据金属-半导体理论模型分析了原因. 关键词:碳纳米管; 丝网印刷; 场发射; 衬底电极; carbon nanotubes; screen-printing; field emission; electrode substrates; [全文内容正在添加中] ......
with thermal power is higher than that with hydropower, e.g., for the former, the greenhouse gas emission coefficient of 21800 kg CO2 eq/t (Al) will be generated, while for the latter, 4910 kg CO2 eq/t (Al) will be generated. (3) Both power mode methods reflect the energy structure, whereas direct emissions reflect the technical level, indicating the potential for large energy savings and emission......
is the effect of crystal field splitting and nephelauxetic effect,and the nephelauxetic effect is dominant.Therefore,the emission FWHM decreases with the increasing concentration of Mn2+/Tb3+/Eu3+in Zn3...Tunable luminescence in co-doped Zn3Al2Ge2O10:Cr3+ by controlling crystal field splitting and nephelauxetic effectQiongyu Bai1,2,Suling Zhao1,2,Zheng Xu1,2,Panlai Li31. Key Laboratory of Luminescence......
is the effect of crystal field splitting and nephelauxetic effect,and the nephelauxetic effect is dominant.Therefore,the emission FWHM decreases with the increasing concentration of Mn2+/Tb3+/Eu3+in Zn3...Tunable luminescence in co-doped Zn3Al2Ge2O10:Cr3+ by controlling crystal field splitting and nephelauxetic effectQiongyu Bai1,2,Suling Zhao1,2,Zheng Xu1,2,Panlai Li31. Key Laboratory of Luminescence......
