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

作　　者：DUANYang AN Oi ZHANG Qian ZHANG Yihe 

机构地区：[1]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

出　　处：《Chemical Research in Chinese Universities》2015年第4期674-679,共6页高等学校化学研究（英文版）

基　　金：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 Engi- neering, 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.

摘　　要：To prepare layer-by-layer（LbL） multilayers in time-efficient manners by the dipping method is highly ap- pealing. 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 condi- tions, such as washing duration, water annealing period, and drying with nitrogen flow, LbL multilayers with en- hanced surface smoothness could be obtained through fast LbL assembly.To prepare layer-by-layer（LbL） multilayers in time-efficient manners by the dipping method is highly ap- pealing. 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 condi- tions, such as washing duration, water annealing period, and drying with nitrogen flow, LbL multilayers with en- hanced surface smoothness could be obtained through fast LbL assembly.

关 键 词：Layer-by-layer self-assembly Surface morphology Water annealing Nitrogen flow 

分 类 号：O484.1[理学—固体物理] TH132.41[理学—物理]