Clay-assisted disaggregation and stabilization in hemicyanine Langmuir-Blodgett films.
Hybrid Langmuir-Blodgett films consisting of an amphiphilic hemicyanine derivative and a smectite clay have been fabricated employing a clay suspension as the subphase. This hybridization was demonstrated to be a convenient and effective means of achieving complete disaggregation of dye chromophores in a Langmuir-Blodgett film without reducing chromophore density in the two-dimensional lattice. UV-visible electronic absorption and optical second-harmonic generation measurements indicated that the molecular alignment in the films was stabilized by the hybridization.
Kawamata
Jun
J
Department of Chemistry, Faculty of Science, Yamaguchi University, Yoshida, Yamaguchi 753-8512, Japan.
Hasegawa
Shinya
S
D000538:Aluminum Silicates / Q000737:chemistry*; D002232:Carbocyanines / Q000737:chemistry*; D000077215:Clay; D020099:Coated Materials, Biocompatible / Q000737:chemistry; D004355:Drug Stability; D018625:Microscopy, Atomic Force; D036103:Nanotechnology / Q000379:methods*; D011726:Pyridinium Compounds / Q000737:chemistry; D013053:Spectrophotometry; D013501:Surface-Active Agents
D000538:Aluminum Silicates; D002232:Carbocyanines; D020099:Coated Materials, Biocompatible; D011726:Pyridinium Compounds; D013501:Surface-Active Agents; D000077215:Clay