AFM force measurements between SAM-modified substrate in alkaline solution

Article Abstract:

The reversible desorption and adsorption of ethanethiol (ET) and hexadecane thiol (HDT) self-assembled monolayers (SAMs) on gold substrates are addressed with potential-dependent atomic force microscopy (AFM) force measurements where both tip and substrate potentials are controlled. The adhesion interaction between HDT-modified tip and substrate exhibits a large adhesion, whereas the adhesion is reduced to one-quarter of its original value after HDT on the substrate is removed.

Mercaptans, Usage, Atomic force microscopy, Thiols

---

Changing molecular orientation in fluorocarbon thin films deposited by different photo-processing: synchrotron radiation etching vs. laser ablation

Article Abstract:

Flexible macromolecule poly (tetrafluoroethylene) (PTFE) has shown its unique capacity for crystallization and molecular orientation, where it forms long extended-chain crystalline whiskers and well orients in its thin films. The study indicates that like laser ablation, synchrotron radiation (SR) can be used to directly etch materials without using any chemicals, offering a simple and versatile method for forming thin films.

Fluorocarbons, Analysis, Magnetic properties, Synchrotron radiation

---

Electronic structure of metal-free porphyrazines in thin films

Article Abstract:

Photoemission spectra of the valence region for a series of linearly benzo-annelated porphyrazine molecules in thin films using synchrotron radiation is studied for three different ligand sizes. A small influence of the tert-butyl substituent group on the photoemission spectra is observed as compared to spectra of unsubstitutted molecules.

Cyclic Crude and Intermediate Manufacturing, Porphyrins, Mechanical properties, Spectra (Spectroscopy)

Similar abstracts:

• Abstracts: Relation between the solubility of proteins in aqueous solutions and the second virial coefficient of the solution
• Abstracts: Thermogravimetric Measurement of Hydrogen Absorption in Alkali-Modified Carbon Materials. Temperature dependence of the free energy, ethaloy, and entropy of P(super +)Q(sub A)(super -) charge recombination in Rhodobacter sphaeroides R-26 reaction centers
• Abstracts: Spectral properties and redox potentials of silver atoms complexed by chloride ions in aqueous solution. Optical limitation induced by gold clusters. 1. Size effect
• Abstracts: Colloidal stability and the influence of the dissolved gas. Photoenhancement of luminescence in colloidal CdSe quantum dot solutions
• Abstracts: BF3 adsorption on alpha-Cr2O3 (1012): Probing the Lewis basicity of surface oxygen anions. Ab initio study of magnetic structure and chemical reactivity of Cr2O3 and its (0001) surface

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.