The Near Surface Morphology of P3HT：PCBM Blend Films Studied by Near-Edge X-Ray Absorption Fine Structure

The microstructure of poly（3-hexylthiophene） （P3HT） and [6,6]-phenyl-C61 butyric acid methyl ester （PCBM） blends with various annealing temperatures are investigated in detail by the near-edge x-ray absorption fine structure. Under higher anneMing temperature （Tanneal ≥ 160℃）, P3HT shows an unusual...

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Published inChinese physics letters Vol. 31; no. 5; pp. 104 - 106
Main Author 曾雪松 史同飞 叶长辉 李宁 李新化 王玉琦
Format Journal Article
LanguageEnglish
Published 01.05.2014
Subjects
Annealing
Blends
Butyric acid
Esters
Fine structure
Morphology
Surface chemistry
X-rays
丁酸甲酯
共混物
微观结构
薄膜
表面形貌
近边X射线吸收精细结构
退火处理
退火温度
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Summary:The microstructure of poly（3-hexylthiophene） （P3HT） and [6,6]-phenyl-C61 butyric acid methyl ester （PCBM） blends with various annealing temperatures are investigated in detail by the near-edge x-ray absorption fine structure. Under higher anneMing temperature （Tanneal ≥ 160℃）, P3HT shows an unusual fluidity and aggregation in the surface. After annealing, the enrichment polymer component recrystallizes and forms a single P3HT phase layer in the surface of blend films. Moreover, it gives direct evidence of the PCBM content diffusing to the near surface of blend films during annealing treatment. These findings are beneficial to improving the morphology of polymer/fullerene blend films.
Bibliography:ZENG Xue-Song, SHI Tong-Fei, YE Chang-Hui, LI Ning, LI Xin-Hua, WANG Yu-Qi（ Key Laboratory of Material Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031）
The microstructure of poly（3-hexylthiophene） （P3HT） and [6,6]-phenyl-C61 butyric acid methyl ester （PCBM） blends with various annealing temperatures are investigated in detail by the near-edge x-ray absorption fine structure. Under higher anneMing temperature （Tanneal ≥ 160℃）, P3HT shows an unusual fluidity and aggregation in the surface. After annealing, the enrichment polymer component recrystallizes and forms a single P3HT phase layer in the surface of blend films. Moreover, it gives direct evidence of the PCBM content diffusing to the near surface of blend films during annealing treatment. These findings are beneficial to improving the morphology of polymer/fullerene blend films.
11-1959/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/5/056102