| 查看: 188 | 回复: 1 | |||
| 当前主题已经存档。 | |||
[交流]
翻译 一段文章!急用!!
|
|||
|
通过高温固相法合成了Ba1.6-xMg0.4SiO4:xEu2+(x = 0.005, 0.01,0.03，0.05)（0.005≤X≤0.05）发光材料，其激发光谱和发射光谱均为宽带谱。研究了激活剂Eu2+，对基质结构的影响及发光性能的影响。材料随着Eu2+离子浓度的增加，发光强度逐渐增强，当Eu2+离子掺杂量达到0.03%mol时，材料的发光强度最大，之后随着Eu2+离子浓度的增加，发生浓度碎灭，发光强度降低。 采用高温固相反应法合成了组分为Ba1.2-xMg0.8SiO4:xEu2+ (x = 0.005, 0.01,0.03，0.05)（0.005≤X≤0.05）系列荧光粉。研究了激活剂Eu2+对基质结构的影响及发光性能的影响。所研究的Ba1.2-xMg0.8SiO4:xEu2+发光材料在紫外光照射下均呈宽带发射，激发光谱为250nm到430nm，具有从紫外到蓝绿光波段能量的吸收范围。 |
回复此楼» 猜你喜欢
材料调剂
已经有4人回复
-
面上模板改不了页边距吧？
已经有6人回复
-
307求调剂
已经有6人回复
-
304求调剂
已经有5人回复
-
317一志愿华南理工电气工程求调剂
已经有8人回复
-
272求调剂
已经有3人回复
-
化工专硕348，一志愿985求调剂
已经有6人回复
-
292求调剂
已经有3人回复
-
290求调剂
已经有6人回复
-
295求调剂
已经有5人回复
mayong11
铁杆木虫 (职业作家)
- 应助: 4 (幼儿园)
- 金币: 5866.8
- 红花: 21
- 帖子: 3447
- 在线: 189.9小时
- 虫号: 485538
- 注册: 2007-12-27
- 性别: GG
- 专业: 药物化学
★ ★ ★ ★ ★ ★
gao858(金币+6,VIP+0):非常感谢! 3-29 09:25
gao858(金币+6,VIP+0):非常感谢! 3-29 09:25
|
The Ba1.6-xMg0.4SiO4: xEu2 + (x = 0.005, 0.01,0.03,0.05) (0.005 ≤ X ≤ 0.05) light-emitting materials are synthesized by the high-temperature solid-phase synthesis ,which excitation spectra and emission spectra are broadband spectrum. we research the effect of the activator Eu2 +on the matrix structure and luminescence properties. the results showed that luminescence intensity of the materials gradually increased with the Eu2 + ion concentration increasesing , When the Eu2 + ion doped reached 0.03% mol, the maximum luminous intensity of Materials was found, and then followed with the Eu2 + ion concentration increasesing,luminous intensity of the materials was lower the series of Ba1.2-xMg0.8SiO4: xEu2 + (x = 0.005, 0.01,0.03,0.05) (0.005 ≤ X ≤ 0.05) phosphor are synthesized by the High-temperature solid-state reaction. we studied the effect of the activator Eu2 + on the matrix structure and luminescence properties. the studied Ba1.2-xMg0.8SiO4: xEu2 + luminescent materials showed broadband launch under UV irradiation , the range of excitation spectra from 250nm to 430nm, with the absorption band of energy range from the ultraviolet to the blue-green light [ Last edited by mayong11 on 2009-3-25 at 15:35 ] |
2楼2009-03-25 15:26:50
