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Herstellung organischer Dünnstschichten
Author(s) -
Himmel HansJörg,
Wöll Christof
Publication year - 1998
Publication title -
chemie in unserer zeit
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.217
H-Index - 24
eISSN - 1521-3781
pISSN - 0009-2851
DOI - 10.1002/ciuz.19980320603
Subject(s) - monolayer , microcontact printing , fabrication , materials science , adsorption , self assembled monolayer , nanotechnology , chemical vapor deposition , deposition (geology) , chemical engineering , chemistry , organic chemistry , sediment , engineering , medicine , paleontology , alternative medicine , pathology , biology
Abstract In this paper we present different experiments describing the fabrication and characterisation of self‐assembled monolayers of organothiols and also discuss some of the most important applications of these systems. The reader may practise the fabrication and characterisation of self‐assembled monolayers with different endgroups by adsorption of CH 3 ‐ and Oh‐terminated alkanethiols on copper‐coins (1 or 2 Pfenningcoins). Then patterned self‐assembled monolayers of CH 3 ‐ and OH‐terminated alkanethiols are produced by applying the microcontact printing technique. When these gratings are wet with water‐e.g. by breathing into the surfaces‐the water adsorbs onto the hydrophilic OH‐terminated areas but not on the hydrophobic CH 3 ‐terminated regions. Illumination with a laser then produces bright diffraction spots which disappear when the water evaporates. Finally, we briefly discuss applications of the self‐assembled ultrathin films as sensor‐devices and as substrates for CVD (chemical vapour deposition).