By using a simply and low-temperature hydrothermal method, ZnO nanorod array films with narrow size distribution and high orientation consistence were successfully prepared on ITO substrates, which were pre-treated wi...By using a simply and low-temperature hydrothermal method, ZnO nanorod array films with narrow size distribution and high orientation consistence were successfully prepared on ITO substrates, which were pre-treated with ZnO colloid solution. The obtained ZnO nanostructure was characterized by XRD and SEM. The results of characterization indicate that the nanorods are high-quality single crystals growing along (001) direction with a high consistent orientation perpendicular to the substrate. SEM images show that the nanorods have a very narrow size distribution of 20—50 nm with the average diameter about 40 nm. The room temperature photoluminescence of the as-prepared ZnO films exhibits a strong UV emission at about 390 nm and a weak emission at about 460 nm. The ease of fabricating high-quality ZnO nanorod arrays in large scales will greatly promote the fundamental research and practical applications of the ordered one-dimention ZnO structure in various fields of nanoscale science and technology.展开更多
“二氧化钛”是一个专业又很陌生的名词，然而如何让它发挥更大的作用，则一直是近年来国际上的研究热点之一。通过改良它的结构，可以让太阳能电池将光转化为电的效率更高，也可以更好地实现光解水制氢等，是利用新能源和制备光电催化...“二氧化钛”是一个专业又很陌生的名词，然而如何让它发挥更大的作用，则一直是近年来国际上的研究热点之一。通过改良它的结构，可以让太阳能电池将光转化为电的效率更高，也可以更好地实现光解水制氢等，是利用新能源和制备光电催化剂的重要材料。据2009年4月1日中国航天新闻网报道，中国科学院兰州化学物理研究所固体润滑国家重点实验室研究员周峰介绍，最近在二氧化钛的研究上取得了新的进展，成功制备了高度有序的多孔型二氧化钛纳米管阵列材料，并实现了二氧化钛纳米管阵列的可控生长，其管径可控范围为20～250nm，管长为150nm-500μm。通过形成杂化复合材料，成功实现柔性二氧化钛薄膜制备。这些材料已经在光催化、染料敏化太阳能电池、超疏水等领域展现十分优异的性能。据介绍，相关研究成果已经被国际著名期刊《物理化学杂志C》（Journal of Physical Chemistry C）等刊发。这个实验室研究出的方法制备工艺简单、原料易得、制备成本较低，有望在实际生产中得到应用推广。展开更多
基金supported by the National Key Basic Research Program of China (973) (2011CBA00700)National High Technology Research and Development Program of China (863) (2011AA050527)National Natural Science Foundation of China (51172237, 61306082, 61306083)~~
文摘By using a simply and low-temperature hydrothermal method, ZnO nanorod array films with narrow size distribution and high orientation consistence were successfully prepared on ITO substrates, which were pre-treated with ZnO colloid solution. The obtained ZnO nanostructure was characterized by XRD and SEM. The results of characterization indicate that the nanorods are high-quality single crystals growing along (001) direction with a high consistent orientation perpendicular to the substrate. SEM images show that the nanorods have a very narrow size distribution of 20—50 nm with the average diameter about 40 nm. The room temperature photoluminescence of the as-prepared ZnO films exhibits a strong UV emission at about 390 nm and a weak emission at about 460 nm. The ease of fabricating high-quality ZnO nanorod arrays in large scales will greatly promote the fundamental research and practical applications of the ordered one-dimention ZnO structure in various fields of nanoscale science and technology.
文摘“二氧化钛”是一个专业又很陌生的名词，然而如何让它发挥更大的作用，则一直是近年来国际上的研究热点之一。通过改良它的结构，可以让太阳能电池将光转化为电的效率更高，也可以更好地实现光解水制氢等，是利用新能源和制备光电催化剂的重要材料。据2009年4月1日中国航天新闻网报道，中国科学院兰州化学物理研究所固体润滑国家重点实验室研究员周峰介绍，最近在二氧化钛的研究上取得了新的进展，成功制备了高度有序的多孔型二氧化钛纳米管阵列材料，并实现了二氧化钛纳米管阵列的可控生长，其管径可控范围为20～250nm，管长为150nm-500μm。通过形成杂化复合材料，成功实现柔性二氧化钛薄膜制备。这些材料已经在光催化、染料敏化太阳能电池、超疏水等领域展现十分优异的性能。据介绍，相关研究成果已经被国际著名期刊《物理化学杂志C》（Journal of Physical Chemistry C）等刊发。这个实验室研究出的方法制备工艺简单、原料易得、制备成本较低，有望在实际生产中得到应用推广。
