| pH值对电致发光粉表面包覆SiO_2膜的影响 |
| |
| 引用本文： | 吴峰,李志强,王立明.pH值对电致发光粉表面包覆SiO_2膜的影响[J].河北大学学报(自然科学版),2003,23(1):25-28. |
| |
| 作者姓名： | 吴峰 李志强 王立明 |
| |
| 作者单位： | 河北大学物理科学与技术学院,河北,保定,071002 |
| |
| 基金项目： | 河北省自然科学基金资助项目(502123) |
| |
| 摘 要： | 采用Na_2SiO_3水解法,在ZnS:Cu电致发光粉表面包覆SiO_2膜层,并主要分析了包SiO_2膜时,pH值对包覆膜致密性的影响。发现电致发光粉在pH=9.5的Na_2SiO_3溶液中预分散条件下,陈化至8.5,易于形成均匀致密的SiO_2膜层。因此,电致发光粉的老化性能得到一定程度的改善,延缓了它的老化。
|
| 关 键 词： | 电致发光粉 SiO_2 包覆 水解法 |
| 文章编号： | 1000-1565(2003)01-0025-04 |
| 修稿时间： | 2002年9月8日 |
Influence of pH Value on Coating SiO2 Film on the Surface of Electroluminescent Phosphor |
| |
| WU Feng,LI Zhi-qiang,WANG Li-ming.Influence of pH Value on Coating SiO2 Film on the Surface of Electroluminescent Phosphor[J].Journal of Hebei University (Natural Science Edition),2003,23(1):25-28. |
| |
| Authors: | WU Feng LI Zhi-qiang WANG Li-ming |
| |
| Abstract: | Electroluminescent phosphor ZnS: Cu is coated with SiO2 film using the method of Na2SiO3 hydrolysis and the influence of the value of pH on the compactness of the coating is mainly analyzed. It is discovered that the homogeneous and compact coating tends to be formed when the solution is stalled at pH equaling 8. 5 under the condition of predispersion in the Na2SiO3 solution at pH equaling 9.5. Thereby, the aging nature is improved to a certain extent and the process of its decay is delayed. |
| |
| Keywords: | electroluminescent phosphor silicon dioxide coating hydrolytic method |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
