| 纳米氧化锌的制备与发光性能的研究 |
| Nanocrystalline ZnO Powders: Preparation and Photoluminescence Property |
|
| 摘要: |
| 关键词: ZnO纳米粒子 Sol-Gel 荧光 |
| 基金项目: |
| Abstract: Nanocrystalline ZnO Powders were prepared by sol-gel process from Zn(Ac)2·2H2O and 2-methoxyethanol solutions containing monoethanolamine. It was found that the photoluminescence (PL) spectra of samples (calcined at 250, 350 and 500 ℃, respectively) had two emission bands in UV region (at ～378 nm) and visible region (at ～502 nm) . The intensity of UV emission bands decreased with the increase of the calcination temperature, and the opposite was true for the visible emission band. TEM, TG-DTG, DTA, XRD, FTIR and surface photovoltage spectra (SPS) were used to investigate this competitive phenomenon. The results indicate that the adsorption of organies on the surface of nanoparticles is the key factor responsible for the relative PL intensity of the two emission bands. |
| Keywords: ZnO Nanopowders Sol-Gel photoluminescence |
| |
| 摘要点击次数: 4795 |
| 全文下载次数: 8639 |
| 郭书霞,张兴堂,赵慧玲,李蕴才,黄亚彬,杜祖亮.纳米氧化锌的制备与发光性能的研究[J].无机化学学报,2006,22(4):724-728. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
