中国物理B ›› 2010, Vol. 19 ›› Issue (5): 56701-056701.doi: 10.1088/1674-1056/19/5/056701
公茂刚, 许小亮, 杨周, 刘艳松, 刘玲
Gong Mao-Gang(公茂刚)†, Xu Xiao-Liang(许小亮)‡, Yang Zhou(杨周), Liu Yan-Song(刘艳松), and Liu Ling(刘玲)
摘要: ZnO micro/nano complex structure films, including reticulate papillary nodes, petal-like and flake-hole, have been self-assembled by a hydrothermal technique at different temperatures without metal catalysts. The wettability of the above film surfaces was modified with a simple coating of heptadecafluorodecyltrimethoxy-silane in toluene. After modifying, the surface of ZnO film grown at 50~${^\circ}$C was converted from superhydrophilic with a water contact angle lower than 5$^{\circ}$ to superhydrophobic with a water contact angle of 165$^{\circ}$. Additionally, the surface of reticulate papillary nodes ZnO film grown at 100~${^\circ}$C had excellent superhydrophobicity, with a water contact angle of 173$^{\circ}$ and a sliding angle lower than 2$^{\circ}$. Furthermore, the water contact angle on the surface of petal-like and flake-hole ZnO films grown at 150~${^\circ}$C and 200~${^\circ}$C were found to be 140$^{\circ}$ and 120$^{\circ}$, respectively. The wettability for the samples was found to depend strongly on the surface morphology which results from the growth temperature.
中图分类号: (Thin film structure and morphology)