碘掺杂聚乙炔电子自旋共振及导电性的研究  

STUDIES ON ELECTRIC CONDUCTIVITY AND ELECTRON SPIN RESONANCE FOR IODINE DOPED POLYACETYLENE

作　　者：崔云龙[1] 林森浩[1] 张家骅[1] 

机构地区：[1]中国科学院上海原子核研究所,上海201800

出　　处：《物理学报》1993年第2期340-344,共5页Acta Physica Sinica

摘　　要：用四探针法测量掺碘聚乙炔薄膜[CH(I_3)_y]_xy当y=1.0％,4.2％和8.3％时面电阻随温度的变化,发现它们可用变程跳跃(VRH)模型很好的描述。用电子自旋共振(ESR)谱仪研究了不同温度下低浓度碘掺杂聚乙炔的自旋磁化率、峰峰宽等。并给出相应的理论解释。The four-probe technique is used to measire the electric conductivity of polyacetylene doped with iodine. For dopant concentration ranging from 1.0 to 8.3 mol% in cis-(CH)x, the obtained conductivity values for different temperatures are consistent with the variable-range hopping model. The mechanisms of the temperature dependence of the ESR spin magnetic susceptibility and line width for low iodine concentrations are studied.

关 键 词：聚乙炔 碘 电子自旋共振 导电性 

分 类 号：TN304.52[电子电信—物理电子学]