| 活性粒子吸附对ZnO纳米粒子表面光伏特性的影响 |
| |
| 引用本文： | 王雪松,王德军,肇启东,谢腾峰.活性粒子吸附对ZnO纳米粒子表面光伏特性的影响[J].高等学校化学学报,2004,25(12):2353-2355. |
| |
| 作者姓名： | 王雪松 王德军 肇启东 谢腾峰 |
| |
| 作者单位： | 吉林大学化学学院,长春,130023;吉林大学化学学院,长春,130023;吉林大学化学学院,长春,130023;吉林大学化学学院,长春,130023 |
| |
| 基金项目： | 国家自然科学基金 (批准号 :2 0 2 73 0 2 7)，教育部博士学科点基金 (批准号 :0 2 0 183 0 0 8)，吉林大学纳米重点科研基金资助 |
| |
| 摘 要： | 作为一种传统的半导体，氧化锌在压电陶瓷、光电化学、光催化、发光器件以及气体传感器等方面具有广阔的应用前景，特别是氧化锌纳米粒子，由于其比表面积大、表面活性较高和对周围环境的敏感性，使其成为传感器研究领域中最有前途的材料，有关生物氧传感器和激光器的光电功能特性以及其能带结构的研究已有报道，
|
| 关 键 词： | ZnO纳米粒子 光电气敏 表面光伏 表面态 |
| 文章编号： | 0251-0790(2004)12-2353-03 |
| 收稿时间： | 2004-05-10 |
Influence of Active Particle Adsorption on Surface Photovoltage Properties of ZnO Nanoparticle |
| |
| WANG Xue-Song,WANG De-Jun ,ZHAO Qi-Dong,XIE Teng-Feng.Influence of Active Particle Adsorption on Surface Photovoltage Properties of ZnO Nanoparticle[J].Chemical Research In Chinese Universities,2004,25(12):2353-2355. |
| |
| Authors: | WANG Xue-Song WANG De-Jun ZHAO Qi-Dong XIE Teng-Feng |
| |
| Institution: | WANG Xue-Song,WANG De-Jun *,ZHAO Qi-Dong,XIE Teng-Feng |
| |
| Abstract: | Surface photovoltage spectrum(SPS), field-induced surface photovoltage spectrum(FISPS) and gas probe techniques are used together to study surface photovoltage(SPV) property of ZnO nanoparticles. The SPS of ZnO nanoparticles consists of two parts, band-to-band transition(P1,P2) and surface states transition(P3). The result shows that the SPV response is mostly attributed to the built-in field formed by active adsorbates, most of which is O 2. Competitive adsorption of O 2 and H 2O exists on ZnO surface. They play different roles in the influence on SPS. The Adsorption of O 2 weakens P3, whereas H 2O enhances P3. And the velocity of adsorption and desorption of O 2 on the surface is significantly faster than H 2O. The adsorption and desorption of H 2O may be correlated with the adjustment of surface structure. |
| |
| Keywords: | ZnO nanoparticles Photo-electric gas-sensitivity Surface photovoltage Surface state |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 |
| 点击此处可从《高等学校化学学报》下载免费的PDF全文 |
