AFM诱导正十八硫醇在金基底上的选择性生长  

AFM Controlled Selective Deposition of 1-Octadecanethiol on Gold

作　　者：张浩力[1] 郭云[2] 力虎林[1] 杨得全 

机构地区：[1]兰州大学化学系,兰州730000 [2]中国科学院兰州物理所应用表面物理实验室,兰州730000

出　　处：《高等学校化学学报》1999年第9期1460-1462,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金!69871013

摘　　要：AFM was employed for fabricating positive organic pattern on gold surface. In this procedure, 1-octadecanethiol was adsorbed onto AFM tip firstly and then transported to gold surface during the scanning process. The transported molecules could spontaneously adsorbed onto gold surface to form a monolayer. The selective transport was controlled by the scanning parameter, such as scanning speed and tip-substrate interaction. It was found that the relative humidity plays very important roles on the deposition process, the higher the humidity, the higher the possibility that deposition happens. The dependence of deposition on the humidity suggests that the 1-octadecanethiol molecule is transported through the water layer on the gold surface. Meanwhile, the optimal deposition condition also depends on the characteristics of AFM tip.AFM was employed for fabricating positive organic pattern on gold surface. In this procedure, 1-octadecanethiol was adsorbed onto AFM tip firstly and then transported to gold surface during the scanning process. The transported molecules could spontaneously adsorbed onto gold surface to form a monolayer. The selective transport was controlled by the scanning parameter, such as scanning speed and tip-substrate interaction. It was found that the relative humidity plays very important roles on the deposition process, the higher the humidity, the higher the possibility that deposition happens. The dependence of deposition on the humidity suggests that the 1-octadecanethiol molecule is transported through the water layer on the gold surface. Meanwhile, the optimal deposition condition also depends on the characteristics of AFM tip.

关 键 词：AFM 选择性生长 正十八硫醇 硫醇 自组装膜 

分 类 号：O623.81[理学—有机化学]