Role of the restricted geometry on the morphology of ultrathin poly(di-n-hexylsilane) films
Role of the restricted geometry on the morphology of ultrathin poly(di-n-hexylsilane) films
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DOI:
10.1021/ma00123a042
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发表时间:
1995-09
期刊:
影响因子:
5.5
通讯作者:
M. Despotopoulou;C. Frank;R. D. Miller;J. Rabolt
中科院分区:
文献类型:
--
作者:
M. Despotopoulou;C. Frank;R. D. Miller;J. Rabolt
The properties and morphology of thin films critically depend on the chain conformation and organization near the substrate. Presently, the trend toward structure miniaturization, especially in the microelectronics industry, dictates the use of ultrathin polymer films, and, hence, understanding the effect of the restricted geom-etry on the organization of the polymer chains near the interface is of great current scientific and technological importance.To study the effect of thickness on the properties of ultrathin (0-1000 Á thick) polymer films, we have elected to work with the polysilanes, and specifically poly (di-n-hexylsilane)-[(CeHis^ SiL-· The electronic structure of these materials depends on the polymer chain conformation, 1 and, therefore, they are ideally suited for the study of the polymer chain conformation in a restricted geometry. UV-visible absorption spec-troscopy, a simple and well understood technique, can be used for this purpose.