期刊
ACS APPLIED MATERIALS & INTERFACES
卷 1, 期 9, 页码 1856-1859出版社
AMER CHEMICAL SOC
DOI: 10.1021/am9004336
关键词
interfacial width; bilayer; spin coating; flotation; neutron reflectivity
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan
A spin-coating method with the aid of selective solvents has been used to construct m,u. Itilayer struct ures for organic devices under the assumption that the solvents do not invade, a preformed structure. To confirm the assumption, we examined the interfacial width (lambda(i)) of model polymer bilayers, composed of polystyrene and perdeuterated poly(methyl methacrylate), prepared by spin-coating and notation methods. Neutron reflectivity measurements revealed that the lambda(i) value was,larger for the spin-coating method than for the flotation method. These results cast doubt on the validity of the assumption. This knowledge should be kept in mind when this method is applied to construct multilayer structures.
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