The LB films of a novel Amphiphilic porphyrine-viologen compound were
deposited on various slids (glass, silicon, graphite) and their struct
ures were studied by pi-A isotherm analysis, UV-absorption spectra, li
ttle and low angle X-ray diffraction and STM. The results showed that
the LB films are oriented in superlattic structure. The molecular area
, monolayer high are 1.15nm(2), 2.35nm respectively, the distance betw
een adjacent rows is 1.07nm. The well oriented LB films showed higher
light quantum photon yields and good photoelectric on-off characterist
y.