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蜀将何在

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[交流] PEDOT:PSS薄膜的拉曼主峰向高波数移动是什么原因

RT,经过后处理的PEDOTSS薄膜导电性变好,但是拉曼主峰并没有像文献里说的那样向低波数移动(表明由苯型向醌型的转变),反而移向高波数,这是为什么?
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伊铮

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小木虫: 金币+0.5, 给个红包,谢谢回帖
您好,最近看文献,“Fig. 4b shows
the peak position variations of the two major peaks for the
symmetric and asymmetric Ca–Cb stretching vibrations
(Fig. S5†. Evidently, except for the sample with the 3 wt% EG
addition, the additions of 3 to 5 wt% DMSO and of 5 to 9 wt%
EG to PEDOTSS cause the symmetric and asymmetric Ca–Cb
stretching modes shied to higher wavenumbers. These shis
can be attributed to the changes in the electronic structure of
PEDOT upon oxidation (doping) and rearrangement of the
PEDOT chains from the coil-like benzoid structure to a more
linear or extended quinoid structure as a result of the co-solvent
addition.4,8,28 The expansion of chains is believed to cause the
size increase in the PEDOT nanocrystals observed in the AFM
images.” 拉曼主峰并向高波数移动(表明由苯型向醌型的转变),您是在哪篇文献看到拉曼主峰向低波数移动(表明由苯型向醌型的转变)?
2楼2020-08-28 20:15:43
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