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ÄúºÃ£¬×î½ü¿´ÎÄÏ×£¬¡°Fig. 4b shows
the peak position variations of the two major peaks for the
symmetric and asymmetric Ca¨CCb 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¨CCb
stretching modes shi«àed to higher wavenumbers. These shi«às
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.¡± À­ÂüÖ÷·å²¢Ïò¸ß²¨ÊýÒÆ¶¯£¨±íÃ÷Óɱ½ÐÍÏòõ«Ð͵Äת±ä£©£¬ÄúÊÇÔÚÄÄÆªÎÄÏ׿´µ½À­ÂüÖ÷·åÏòµÍ²¨ÊýÒÆ¶¯£¨±íÃ÷Óɱ½ÐÍÏòõ«Ð͵Äת±ä£©£¿
2Â¥2020-08-28 20:15:43
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