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Energy transfer and cross-relaxation induced multicolor upconversion emissions in Er3+/Tm3+/Yb3+ doped double perovskite La2ZnTiO6 phosphorsYoufusheng Wu1,Fengqin Lai1,Bin Liu1,Zhibiao Li1,Tongxiang... on the bright and stable upconversion(UC) phosphors with multicolor emissions is fundamental and significant for the frontier applications of display and tempe rature probe.He re,dive rse emitting colors......
Remarkable red-shift of upconversion luminescence and anti-ferromagnetic coupling in NaLuF4:Yb3+/Tm3+/Gd3+/Sm3+ bifunctional microcrystals胡仕刚1,刘云新2,吴笑峰1,唐志军1,李志明3,颜焕元4,陈增辉2,胡盼1,余意11. School of Information and Electrical Engineering, Hunan University of Science and Technology2. Department of Physics and Electronic Science, Hunan University of Science and Technology3. School of Information Science......
Remarkable red-shift of upconversion luminescence and anti-ferromagnetic coupling in NaLuF4:Yb3+/Tm3+/Gd3+/Sm3+ bifunctional microcrystals胡仕刚1,刘云新2,吴笑峰1,唐志军1,李志明3,颜焕元4,陈增辉2,胡盼1,余意11. School of Information and Electrical Engineering, Hunan University of Science and Technology2. Department of Physics and Electronic Science, Hunan University of Science and Technology3. School of Information Science......
~+codoping; sol-gel method; upconversion emission; [全文内容正在添加中] ......
blue, green, and red upconversion luminescence in a Tb3+-doped CaO-Al2O3-SiO2 glass was studied, which was excited using 800 nm femtosecond laser irradiation. The upconversion luminescence was attributed to 5D3→7F5, 5D3→7F4, 5D3→7F3, 5D4→7F6, 5D4→7F5, 5D4→7F4, and 5D4→7F3 transitions of Tb3+. The relationship between upconversion luminescence intensity and the pump power indicated that a three-photon......
上转换发光氧氟微晶玻璃的研究进展 肖卓豪1,朱立刚3,卢安贤3 (1.中南大学材料科学与工程学院,长沙410083;2.中南大学有色金属材料科学与工程教育部重点实验室,长沙,410083;3.中南大学材料科学与工程学院,长沙,410083;4.玉林师范学院化学与生物系,玉林,537000) 摘要:综述了近年来用于上转换发光的氧氟微晶玻璃的研究概况,阐述了氧氟微晶玻璃的组分与结构,微晶的形成与检测,上转换发光机理及影响因素.最后指出了上转换发光氧氟微晶玻璃目前存在的问题和今后发展的方向.认为氧氟微晶玻璃今后的发展重点将是实现材料的器件化,并实现高效率的短波长激光输出,尤其是蓝绿激光输出. ......
上转换发光氧氟微晶玻璃的研究进展 肖卓豪1,朱立刚3,卢安贤3 (1.中南大学材料科学与工程学院,长沙410083;2.中南大学有色金属材料科学与工程教育部重点实验室,长沙,410083;3.中南大学材料科学与工程学院,长沙,410083;4.玉林师范学院化学与生物系,玉林,537000) 摘要:综述了近年来用于上转换发光的氧氟微晶玻璃的研究概况,阐述了氧氟微晶玻璃的组分与结构,微晶的形成与检测,上转换发光机理及影响因素.最后指出了上转换发光氧氟微晶玻璃目前存在的问题和今后发展的方向.认为氧氟微晶玻璃今后的发展重点将是实现材料的器件化,并实现高效率的短波长激光输出,尤其是蓝绿激光输出. ......
钨酸钕单晶光谱及其上转换发光 刘燕行1,方方1,臧竞存2 (1.北京工业大学环境与能源工程学院,;2.北京工业大学材料科学与工程学院) 摘要:采用提拉法生长出钨酸钕Nd2(WO4)3单晶. 通过光谱测试确定了Nd 3+的能级结构, 采用波长为808 nm激光二极管作为激发光源, 室温下观测到457和65 7 nm两个波段的上转换荧光, 分别相应于2D5/2→4I11/2和 2G7/2→4I9/2跃迁, 457和657 nm处的上转换荧光强度与激发光功率 分别成线性关系和平方关系. 关键词:稀土; 钨酸钕单晶; 上转换发光; 光谱; [全文内容正在添加中] ......
nonlinear laser crystals by means of self-frequency-conversion and from infrared laser pumped rare earth-doped bulk, fiber and microsphere materials by means of frequency upconversion are introduced in detail. Other kinds of devices and methods are also compared. The typical nonlinear laser crystals such as YAl3(BO3)4, GdAl3(BO3)4, YCa4O(BO3)3, GdCa4O(BO3)3, and the typical upconversion fluoride fibers......
, radiative lifetime, radiative quantum efficiency and the effective emission bandwidth were investigated. The upconversion luminescence intensity of Er3+ ions in the glass ceramics increased significantly with the increasing crystallization temperature. The transition mechanisms of the green and red upconversion luminescence were ascribed to a two-photon process, and the blue upconversion......