Surface defects in polyelectrolyte multilayers: Effects of drying and deposition cycle
文献类型：期刊论文
| 作者 | Wang LM ; Wang L ; Su ZH |
| 刊名 | soft matter
 |
| 出版日期 | 2011 |
| 卷号 | 7期号:10页码:4851-4855 |
| 关键词 | BY-LAYER FILMS IONIC-STRENGTH WEAK POLYELECTROLYTES CHARGE-DENSITY CONTACT LINE ADSORPTION GROWTH GOLD COUNTERIONS WETTABILITY |
| ISSN号 | 1744-683x |
| 通讯作者 | su zh |
| 中文摘要 | layer-by-layer deposition has been used extensively to fabricate ultrathin films, yet some fundamental aspects of this seemingly simple methodology remain unclear, such as defects and factors controlling their formation. in this work we use charged gold nanoparticles as a probe to assess charge distribution on polyelectrolyte multilayer surfaces. this straightforward approach revealed that while excess charges are present rather uniformly throughout most of the surface, there are isolated domains free of excess charges, i.e. surface defects. analysis of defect size distribution indicated that the defects are formed via desorption of individual polyelectrolyte chains from the surface. it was further revealed that intermediate drying in between polyelectrolyte depositions can reduce surface defect by >90%, resulting in more coherent films. area fraction of defects was found to decrease with the number of layers deposited. these surface defects result in significant contact angle hysteresis. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000290227400037 |
| 公开日期 | 2012-06-12 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/45086]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang LM,Wang L,Su ZH. Surface defects in polyelectrolyte multilayers: Effects of drying and deposition cycle[J]. soft matter,2011,7(10):4851-4855. |
| APA | Wang LM,Wang L,&Su ZH.(2011).Surface defects in polyelectrolyte multilayers: Effects of drying and deposition cycle.soft matter,7(10),4851-4855. |
| MLA | Wang LM,et al."Surface defects in polyelectrolyte multilayers: Effects of drying and deposition cycle".soft matter 7.10(2011):4851-4855. |
入库方式： OAI收割
来源：长春应用化学研究所
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