Self-Assembled Monolayers on Gold Substrates - Structure and Characterization

Name: Self-Assembled Monolayers on Gold Substrates - Structure and Characterization
Brand: VDM Verlag Dr. Mueller E.K.
SKU: 9783836490702
Price: 256.25 PLN
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Autor: Mihaela G. Georgata

Język:

Oprawa: Miękka

Wydawca: VDM Verlag Dr. Mueller E.K.

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Self-assembled monolayers (SAMs) consist of densely packed long-chain organic molecules, which are c...

Informacje o książce

Autor

Mihaela G. Georgata

Język

Angielski

Oprawa

Książka - Miękka

Data wydania

2008

strony

132

EAN

9783836490702

ISBN

3836490706

Enbook ID

06945217

Wydawca

VDM Verlag Dr. Mueller E.K.

Waga

186

Wymiary

152 x 229 x 7

Pełny opis

Self-assembled monolayers (SAMs) consist of densely packed long-chain organic molecules, which are chemisorbed on metal substrates through a sulfur head group. §The purpose of this work, is to study the arrangement and structure of SAMs by IR, XPS, NEXAFS, STM, Ellipsometry and contact angle.§While the first group of triptycenethiols and the second group of triarylaminethiols show a formation of disordered films on the gold surface, the third group of alkanethioacetates shows the formation of highly ordered monolayers. A further adsorption to upright oriented molecules is hindered due to kinetic effects.§In the case of azo-molecules it is shown that the photoisomerization process is not reversible. These molecules are not able to form highly ordered monolayers on the gold surface due to the critical effect of azo-moiety. Self-assembled monolayers (SAMs) consist of densely packed long-chain organic molecules, which are chemisorbed on metal substrates through a sulfur head group. The purpose of this work, is to study the arrangement and structure of SAMs by IR, XPS, NEXAFS, STM, Ellipsometry and contact angle. While the first group of triptycenethiols and the second group of triarylaminethiols show a formation of disordered films on the gold surface, the third group of alkanethioacetates shows the formation of highly ordered monolayers. A further adsorption to upright oriented molecules is hindered due to kinetic effects. In the case of azo-molecules it is shown that the photoisomerization process is not reversible. These molecules are not able to form highly ordered monolayers on the gold surface due to the critical effect of azo-moiety.

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