为在硅基底上得到不同化学基团修饰的图形,采用传统的光刻技术与自组装相结合的方法,成功地制备了由甲基与氨基末端官能团组成的图形化自组装膜。将图形化自组装膜泡入碳纳米管DMF(N,N-二甲基甲酰胺)分散液中,图形化自组装膜的氨基区域能均匀吸附一层分散液中碳纳米管,而甲基没有,表明图形化自组装膜的不同自组装膜区域的不同表面性质,证实了该方法的可行性。
Patterned self-assembled monolayers(SAMs) terminated with amine and methyl groups were fabricated using photolithography and self-assembled technique. The deposition of carbon nanotube is conducted by immerging the patterned self-assembled monolayers into the DMF solution with suspended carbon nanotubes. SEM images showed that carbon nanotubes deposit exclusively on the area with amino-terminated self-assembled monolayer, which confirms the difference in surface property on different regions of the patterned SAMS.