Details

Autor(en) / Beteiligte

• Giancane, G
• Manno, D
• Serra, A
• Sgobba, V
• Valli, L

Titel

Characterization of Composite Phthalocyanine–Fatty Acid Films from the Air/Water Interface to Solid Supports

Ist Teil von

• The journal of physical chemistry. B, 2011-12, Vol.115 (50), p.14956-14962

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2011

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• A commercial vanadyl 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine (VOPc) was dissolved in chloroform and spread on ultrapure water subphase in a Langmuir trough. The floating film was thoroughly characterized at the air–water interface by means of the Langmuir isotherm, Brewster angle microscopy, UV–vis reflection spectroscopy, and infrared measurements carried out directly at the air–water interface. All the results showed the formation of a non-uniform and aggregated floating layer, too rigid to be transferred by the Langmuir–Blodgett (LB) method. For this reason, a mixture of arachidic acid and VOPc was realized, characterized, and transferred by the LB technique on solid substrates. Interface measurements and atomic force microscopy analysis suggested the formation of a uniform arachidic acid film and a superimposed VOPc placed in prone configuration.