Hi everyone, I'm a mechanical person and now may need some help from chemistry experts.
My question should be as easy as pie for the chemistry person. I prepared some Au particles in nanoscale attached to the Si substrate. Actually, those particles were fabricated by annealing a certain of Au film, so you can imagine that the adhesive force is not strong. In order to collect them, I originally plan to exfoliate particles with Scotch tape and then resolve the tape in acetone. After clearing by acetone or ethanol, and drying, I should be able to gain the particles.
However, the Scotch tape only gets softened and shrank into a lump of jelly in the acetone. I cannot completely dissolve and remove the tape to extract the particles.
To collect the particles in this situation, is there any organic solvent more powerful I can use?
Also, I believe that there should be other similar methods to collect solid particles in chemistry application. Please share with me some.
Dear Jingyang Zhang I got the impression that the question how to completely dissolve Scotch-tape is not a trivial one. Most references found on the internet deal with the removal of residual adhesive, but not with dissolving the entire tape. Apparently acetone is only useful for removing residual adhesive. To get some answers, please see the following discussion:
https://chemistry.stackexchange.com/questions/89503/methods-for-dissolving-scotch-kaptop-etc-tape-for-electron-microscopy
They also mentioned a closely related question on RG entitled "Can polyimide films(kapton) dissolved...?" which could provide a few answers:
https://www.researchgate.net/post/Can-polyimide-filmskapton-dissolved
Article Strongly adhesive gold electrodes on Melinex®
this paper may be helpful to you, conduction/vacuum may be applied, rest thorough study of this may lead to the solution of your problem
The questions is actually not that easy to answer, even for a chemist. Scotch tape consists of multiple layers of different polymeric materials with different solubility. What materials exactly depends on the kind of Scotch tape. I would test solvents such as THF, DMSO, DMF, NMP, DCM ... Maybe get in contact with someone in the chemistry department. But keep in mind that some of these solvents are not very healthy and should be handled in a fume hood.
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