Lee Jian-Hong, Leu Ing-Chi, Hsu Ming-Chi, Chung Yi-Wen, Hon Min-Hsiung
J Phys Chem B. 2005 Jul 14;109(27):13056-9. doi: 10.1021/jp052203l.
In this letter, we report a one-step templating synthetic strategy to prepare aligned TiO2 nanotube and nanowire arrays on Si substrate from a solution at ambient temperature. The deposition of TiO2 and the selective-etching of the ZnO template proceeded at the same time through the careful control of process parameters. The different thickness of TiO2 sheaths, leading to the formation of nanotubes or nanorods, can be precisely controlled by the deposition time. The idea of selective etching and deposition is applicable to other oxide materials, and such a facile method is expected to find widespread applications.
在这封信中，我们报道了一种一步模板合成策略，用于在室温下从溶液中在硅衬底上制备排列整齐的二氧化钛纳米管和纳米线阵列。通过仔细控制工艺参数，二氧化钛的沉积和氧化锌模板的选择性蚀刻同时进行。通过沉积时间可以精确控制二氧化钛鞘层的不同厚度，从而导致纳米管或纳米棒的形成。选择性蚀刻和沉积的理念适用于其他氧化物材料，预计这种简便的方法将得到广泛应用。
