Conducting Langmuir-Blodgett (LB) films based on a new asymmetrical tetrathiafulvalene (TTF) and its charge transfer complex with TCNQ were prepared by admixing with arachidic acid. The LB films were characterized by ...Conducting Langmuir-Blodgett (LB) films based on a new asymmetrical tetrathiafulvalene (TTF) and its charge transfer complex with TCNQ were prepared by admixing with arachidic acid. The LB films were characterized by surface pressure-area isotherms, UV spectra, and X-ray diffeaction. Conductivity of the LB films relating to the number of layers was studied. After doped with iodine the highest conductivity for the asymmetrical TTF and its TCNQ complex LB film reached 0.23 and 4.7×10-5 S·cm- 1 ，respectively.展开更多
A new type of bifat-chain amphiphilic moecules 1,10-bistearyl-4,6,13,15-tetraene-18-nitrogencrown-6 (NC), was synthesized and adopted as an spacer for an optically nonlinear hemicyanine derivative(DAEP) dye to form in...A new type of bifat-chain amphiphilic moecules 1,10-bistearyl-4,6,13,15-tetraene-18-nitrogencrown-6 (NC), was synthesized and adopted as an spacer for an optically nonlinear hemicyanine derivative(DAEP) dye to form interleaved Y-type LB multilayer films. The second harmonic (SH) intensity increased quadratically with the bilayer number due to improvement of the structural properties by insertion of the long hydrophibic chain of the DAEP between two fat-chains of NC.展开更多
文摘Conducting Langmuir-Blodgett (LB) films based on a new asymmetrical tetrathiafulvalene (TTF) and its charge transfer complex with TCNQ were prepared by admixing with arachidic acid. The LB films were characterized by surface pressure-area isotherms, UV spectra, and X-ray diffeaction. Conductivity of the LB films relating to the number of layers was studied. After doped with iodine the highest conductivity for the asymmetrical TTF and its TCNQ complex LB film reached 0.23 and 4.7×10-5 S·cm- 1 ，respectively.
文摘A new type of bifat-chain amphiphilic moecules 1,10-bistearyl-4,6,13,15-tetraene-18-nitrogencrown-6 (NC), was synthesized and adopted as an spacer for an optically nonlinear hemicyanine derivative(DAEP) dye to form interleaved Y-type LB multilayer films. The second harmonic (SH) intensity increased quadratically with the bilayer number due to improvement of the structural properties by insertion of the long hydrophibic chain of the DAEP between two fat-chains of NC.
