【摘要】 <正> 自从1981年A.Prón等人用三氯化铁掺杂钛系聚乙炔而得到高电导率掺杂聚乙炔以来,对此掺杂聚乙炔的低温电性能已作了一定的研究。不同作者所报道结果可分为两类:一类报道各种掺杂量聚乙炔的电导率均随温度降低而单调减少;另一类则观察到随温度的降低电导率约在200K时出现最大值(增加5%),接着电导率降低。新近我们报导了三氯化铁掺杂的稀土聚乙炔的基本特性。本文进一步对此掺杂稀土聚乙炔的低温电性能作了研究,观察到与上述两种情况相似但不完全相同的结果。更多还原

【Abstract】 Conductivity measurements of FeCl₃ doped cis rare-earth polyacetylenes have been performed under room temperature as well as at low temperature. Conductivities for the doped polyacetylene samples with various dopant concentrations decrease with decreasing temperature. The transportion process obeys qualitatively with the variable range hopping equation. Phase transition was also observed for a few doped samples.更多还原