部花菁染料的多重电荷转移复合物的研究

自1977年夏在纽约科学院一次会议上Heeger，MacdiarAnd和百）l；英树报告了（CH）。可掺杂到金属态［1］以来，已有许多学者对共轭聚合物的化学掺杂及导电性进行了广泛地研究，用能带模型说明掺杂提高电导的原因．从能带模型可预见只有能隙小，带宽大的共轭聚合物才有可能具有较高的导电性．因为能隙小时离子化电位小，电子亲合力大，易于掺杂．带宽大则掺杂后电子易于迁移问，而与多烯具有相同。电子数的部花育染料的七。x比多烯向更长波长方向位移．例如十六碳八烯的A。。x为410O人而具有同样。电子数的部花育染料BTER的人m。x则为51…

Study on the Multiplex Charge Transfer Complex of a Merocyanine Dye

Iodine-doped (C22H16N2SO2) was prepared by doping the dye with iodine vapor. The following characteristics were obtained by structure analysis.
1. The doped iodine exists as I3-anion and I2.
2. Because the electron located on the sulphur atom was transferred to iodine, a charge transfer complx of (C22H16N2SO2I5) was formed.
3. The complex was proved to exist in a quasi-one dimension conductor state, forming two ordered molecular stacks.
4. From the volt-ampere curve with sandwich cell, the room temperature resistivity(ρ) and the exciting energe (△E) of the doped complex were shown to be 3.47×107Ω•cm-1 and 0.4eV respectively.
5.Its electrical behavior obeys the fomulaρ=ρoexp(△E/kt),showing the behavior of a typical semiconductor.