期刊
EUROPEAN PHYSICAL JOURNAL E
卷 35, 期 12, 页码 -出版社
SPRINGER
DOI: 10.1140/epje/i2012-12129-3
关键词
-
资金
- UK EPSRC [EP/F0164331, EP/I028641/1]
- Diamond Light Source [MT1203]
- EPSRC [EP/I028641/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/I028641/1] Funding Source: researchfish
We report surface and interface effects in dynamics and chain conformation in the thin film of conjugated polymer PCDTBT. To probe dynamic anomalies, we measure the glass transition temperature (T-g) of PCDTBT films as a function of thickness, and find that there is a significant depression in T-g for films less than 100nm thick; a result qualitatively similar to that observed in many other polymer film systems. However, for films less than 40 nm, the T-g converges to a constant value of 20K below its bulk value. Grazing incidence X-ray diffraction shows depth-dependent molecular organization that is associated with the unusual thickness-dependent dynamics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据