Smoothing of Fast Assembled Layer-by-layer Films by Adjusting Assembly Conditions

doi:10.1007/s40242-015-4414-x

Chemical Research in Chinese Universities ›› 2015, Vol. 31 ›› Issue (4): 674-679.doi: 10.1007/s40242-015-4414-x

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Smoothing of Fast Assembled Layer-by-layer Films by Adjusting Assembly Conditions

DUAN Yang, AN Qi, ZHANG Qian, ZHANG Yihe

Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, P. R. China

Received:2014-10-31 Revised:2015-01-21 Online:2015-08-01 Published:2015-02-02
Contact: AN Qi, ZHANG Yihe E-mail:an@cugb.edu.cn;zyh@cugb.edu.cn
Supported by:
Supported by the National Natural Science Foundation of China(No.21303169), the Fundamental Research Funds for the Central Universities, China(No.2652013115), the Beijing Nova Program, China(No.Z141103001814064), the Beijing Specific Project to Foster Elitist, China(No.2013D009015000001), the Open Project of State Key Laboratory of Chemical Resource Engineering, China(No.CRE-2013-C-201), the National High Technology Research and Development Program of China (No.2012AA06A109) and the Special co-Construction Project of Beijing City Education Committee, China.

Abstract

Abstract:

To prepare layer-by-layer(LbL) multilayers in time-efficient manners by the dipping method is highly appealing. However, the fast LbL assembly produces multilayers with high surface roughness. In our attempt to smooth the surface morphologies of LbL multilayers obtained by fast assembly(5 s dipping), we studied the influence of the assembly conditions on the surface morphologies. The study shows that by properly adjusting the assembly conditions, such as washing duration, water annealing period, and drying with nitrogen flow, LbL multilayers with enhanced surface smoothness could be obtained through fast LbL assembly.

Key words: Layer-by-layer self-assembly, Surface morphology, Water annealing, Nitrogen flow

DUAN Yang, AN Qi, ZHANG Qian, ZHANG Yihe. Smoothing of Fast Assembled Layer-by-layer Films by Adjusting Assembly Conditions[J]. Chemical Research in Chinese Universities, 2015, 31(4): 674-679.

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Smoothing of Fast Assembled Layer-by-layer Films by Adjusting Assembly Conditions

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