Post on 26-Jun-2015
Truxene and Octanethiol on Gold
DH
February 11, 2008
Sample Prep
• Drop cast truxene previously dissolved in toluene
• Let dry
• Vapor deposit octanethiol– 17 hrs– 74 Co
• Blow Hydrogen Gas to remove any particles on surface
Steps
The image show the steps in gold and there is a bold one. Also it shows
pits.
Interesting
A bright dot is appreciated.
Swiss melted cheese
A column dividing this two planes
Lets try to get more detail
There is gold and a bright dot and then there is the Swiss cheese
Swiss cheese
There is definitely something but it looks like unorganized octanethiol.
While the whitish seen could be truxene
Look at another area
Layers of Gold but we see little bright dots forming a curve and
fuzziness around it
Closer look at fuzzeness
Octanethiol in an unsual formation.
Analysis and Conclusion
• a swiss melted cheese image --> the tip had something around it and even though the current was there. So as the tip was scanning this thing was scratching the sample and trowing the molecules elsewhere. That caused several alterations1) fuzzy area2) octanethiol to appear in a funny unorganized pattern not usual for this molecule
Cont…
• Drifting caused the image to portray a vertical chain of pattern
• Bright dots where gold steps