| TiO2纳米管阵列负载不同形貌Cu2O薄膜的制备及光电性能研究 | |
| Preparation and Photoelectric Property of Different Morphologies Cu2O Loaded on TiO2 Nanotube Arrays Films | |
| 摘要: 本论文采用阳极氧化法在金属钛基底上制备高度有序的TiO2纳米管阵列薄膜, 然后采用脉冲电流法在TiO2纳米管阵列上沉积Cu2O, 从而制备出Cu2O-TiO2纳米管阵列异质结复合薄膜。借助X射线衍射仪(XRD), 场发射扫描电子显微镜(FESEM)和透射电子显微镜(TEM)等表征手段, 详细探讨了Cu2O沉积过程中电解液的不同扰动方式(静止、磁力搅拌和超声搅拌)对复合薄膜物相和形貌的影响。实验结果表明电解液的扰动方式会影响Cu2O沉积过程中的离子扩散和微区化学环境, 从而影响Cu2O的形貌。通过漫反射紫外-可见吸收光谱(UV-Vis)和光电流性能测试可知所制备的负载Cu2O型TiO2纳米管阵列薄膜具有显著的可见光响应效应。 | |
| 关键词: Cu2O-TiO2异质结 微观结构 电沉积 光电性能 | |
| 基金项目: 国家自然科学基金(No.51175363, No. 51274149);长江学者与创新团队发展计划(IRT0972); 校科技发展基金(K2010016) 资助项目。 | |
| Abstract: The highly ordered TiO2 nanotube arrays films were fabricated by anodic oxidation of titanium foil substrates. And then, Cu2O particles were loaded on TiO2 nanotube arrays via galvanostatic pulse electrodeposition. As a result, Cu2O-TiO2 nanotube arrays heterojunction composite films were obtained. The influence of the electrolyte agitation methods (standing, magnetic agitating and ultrasonic stirring) during the processing of depositing Cu2O on the morphology and microstructure of the composite films were investigated by X-ray diffraction(XRD), field emitting scanning electron microscopy(FESEM) and transmission electron microscopy(TEM). The results show that the electrolyte agitation methods would affect the ion diffussion and local chemical environment in the processing of depositing Cu2O, which results in the morphologies evolution of Cu2O particles. The diffuse reflectance UV-Vis absorption spectra and the photocurrent properties measurements show that the prepared Cu2O-TiO2 nanotube arrays composite films exhibit remarkable visible light responses under visible light illumination. | |
| Keywords: Cu2O-TiO2 heterojunction microstructure electrodeposition photoelectric property | |
| 投稿时间：2012-09-06 修订日期：2013-01-04 | |
| 摘要点击次数: 2098 | |
| 全文下载次数: 2036 | |
| 薛晋波,申倩倩,李光亮,梁伟.TiO2纳米管阵列负载不同形貌Cu2O薄膜的制备及光电性能研究[J].无机化学学报,2013,29(4):729-734. | |
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