The result of UV-Vis adsorbance indicates that phthalocyanine copper cation and anion monolayers are alternately deposited, and dimmer is the major form. Through analyzing the 20th phthalocyanine MD film AFM image, we...The result of UV-Vis adsorbance indicates that phthalocyanine copper cation and anion monolayers are alternately deposited, and dimmer is the major form. Through analyzing the 20th phthalocyanine MD film AFM image, we know that the surface of MD film is flat and compact. The physical-chemical properties of molecular end-group have influence on the MD films surface character notably. The contact angles of water on the odd and even layer MD films vary greatly complying with "odd-even" regularity, and the value increases slightly with the increment of MD film layers due to the decrease of van der Waals force reinforced by substrate through MD films.展开更多
The change of frictional force was studied with the increase of scan rate on different Si surface by atomic force microscopy.The results showed that frictional force had different effect with the increasement of scan ...The change of frictional force was studied with the increase of scan rate on different Si surface by atomic force microscopy.The results showed that frictional force had different effect with the increasement of scan rate on different surface.To Si surface and hydroxylate silicon surface,it became bigger.It first decreased and then increased on aminopropylsilanixed(APS)silicon surface,taking on conic section relation.It declined on monolayer copper phthalocyaninetetrasulfonic,tetrasodium salt(CuTsPc)molecular deposition film.In the process of scan,frictional heat greatly affected friction and may even change the shape of the film so that plastic flow arouse.展开更多
文摘The result of UV-Vis adsorbance indicates that phthalocyanine copper cation and anion monolayers are alternately deposited, and dimmer is the major form. Through analyzing the 20th phthalocyanine MD film AFM image, we know that the surface of MD film is flat and compact. The physical-chemical properties of molecular end-group have influence on the MD films surface character notably. The contact angles of water on the odd and even layer MD films vary greatly complying with "odd-even" regularity, and the value increases slightly with the increment of MD film layers due to the decrease of van der Waals force reinforced by substrate through MD films.
文摘The change of frictional force was studied with the increase of scan rate on different Si surface by atomic force microscopy.The results showed that frictional force had different effect with the increasement of scan rate on different surface.To Si surface and hydroxylate silicon surface,it became bigger.It first decreased and then increased on aminopropylsilanixed(APS)silicon surface,taking on conic section relation.It declined on monolayer copper phthalocyaninetetrasulfonic,tetrasodium salt(CuTsPc)molecular deposition film.In the process of scan,frictional heat greatly affected friction and may even change the shape of the film so that plastic flow arouse.
