Inorganic salts diluted in water probed by Raman spectrometry: Data processing and performance evaluation

Raman scattering by diluted magnetic semi- conductors

Raman scattering provides significant information on the nature of the magnetic excitations of diluted magnetic semiconductors (DMS). Transitions involving an exchange of a quantum of angular momentum between the system and the radiation field result in Raman lines with shifts equal to the energy of the magnetic excitations in which the total spin of the crystal changes by fi. Such transitions ...

Water activity and activation diameters from hygroscopicity data – Part I: Theory and application to inorganic salts

A method is described that uses particle hygroscopicity measurements, made with a humidified tandem differential mobility analyzer (HTDMA), to determine solution water activity as a function of composition. The use of derived water activity data in computations determining the ability of aerosols to serve as cloud condensation nuclei (CCN) is explored. Results for sodium chloride and ammonium s...

The Structure of Water in Crystalline Aluminophosphates: Isolated Water and Intermolecular Clusters Probed by Raman Spectroscopy, NMR and Structural Modeling

Peter-Paul Knops-Gerrits,*,†,‡ Helge Toufar,§ Xiao-Yuan Li,| Piet. Grobet,‡ Robert A. Schoonheydt,‡ Pierre A. Jacobs,‡ and William A. Goddard III*,| Centrum Voor OpperVlaktechemie en Katalyse, KU LeuVen, Kardinaal Mercierlaan 92, B-3001 HeVerlee, Belgium; Zeosorb Gmbh, Tricat-strasse, D-06749 Bitterfeld, Germany, Chemistry Department, Hong-Kong UniVersity of Science & Technology, Kowloon, Hong-...

Doping in carbon nanotubes probed by Raman and transport measurements.

In situ Raman experiments together with transport measurements have been carried out on carbon nanotubes as a function of gate voltage. In metallic tubes, a large increase in the Raman frequency of the G(-) band, accompanied by a substantial decrease of its linewidth, is observed with electron or hole doping. In addition, we see an increase in the Raman frequency of the G(+) band in semiconduct...

Arsenic, inorganic and soluble salts