Structure of thin films of poly(3,4-ethylenedioxythiophene)
Structure of thin films of poly(3,4-ethylenedioxythiophene)
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DOI：
10.1016/s0379-6779(98)00315-4
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发表时间：
1999-05-01
期刊：
影响因子：
4.4
通讯作者：
Feidenhans, R
中科院分区：
文献类型：
--
作者：
Aasmundtveit, KE;Samuelsen, EJ;Feidenhans, R
用同步辐射X射线衍射研究了不同衬底上掺杂甲苯磺酸盐的聚（3，4-乙撑二氧噻吩）（PEDOT）薄膜（50-400 nm），发现该材料具有高度的各向异性。这与在其光学和电子性质中观察到的强各向异性相关。晶体的顺序是有限的，并发现了一个次晶结构的证据。提出了一个结构模型，该模型与光学各向异性相一致，并研究了加热到200 ℃的影响。与其他取代的聚噻吩的情况不同，加热PEDOT增加了结晶顺序。
Thin films (50-400 nm) of tosylate-doped poly(3,4-ethylene-dioxy-thiophene) (PEDOT) on various substrates have been studied by grazing incidence X-ray diffraction, using synchrotron radiation.The material was found to be highly anisotropic. This is correlated with a strong anisotropy observed in its optical and electronic properties. The crystalline order is limited, and evidence is found for a paracrystalline structure. A structural model is presented, which corroborates with the optical anisotropy.The effect of heating the material to 200 degrees C was studied. Unlike the situation for other substituted polythiophenes, heating PEDOT increases the crystalline order.