佩多:嘘
电导率
材料科学
电场
导电聚合物
渗透(认知心理学)
场效应晶体管
凝聚态物理
电阻率和电导率
晶体管
有机场效应晶体管
聚合物
有机半导体
光电子学
化学物理
电压
电气工程
化学
复合材料
物理
物理化学
量子力学
神经科学
生物
工程类
作者
Jin Lu,Nicholas J. Pinto,Alan G. MacDiarmid
摘要
A curious effect is reported whereby an electric field apparently greatly affects the conductivity of an organic polymer, poly-3,4-ethylenedioxythiophene (PEDOT), doped to the “metallic” conducting regime when it is used in an all-organic polymer field effect transistor configuration. The response time for change in current in the source/drain PEDOT polymer with a change of gate voltage is slow (⩽∼2 s), suggesting that ionic diffusion is involved in the phenomenon. It is suggested that the electric field changes only the conductivity of the lowly conducting polymer matrix, which contains highly conducting islands of PEDOT, thus changing the extent of percolation of electric charge between metallic islands, and thereby affecting the bulk conductivity of the PEDOT source/drain material.
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