Mixed-solvent precipitation: A facile approach for nanoparticle self-assembled monolayers

Wu Shan; Gao Guanbin; Zhang Shasha; Zhu Wenbo; Wang Liang; Chen Rui; Zhang Wenkang; Wang Juncheng; Yang Feifei; Li Jing; Shen Lei; Sun Taolei

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Mixed-solvent precipitation: A facile approach for nanoparticle self-assembled monolayers

机译：混合溶剂沉淀：纳米粒子自组装单层的简便方法

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摘要

Nanoparticle self-assembled monolayers (Nano-SAMs) have drawn great attention for their unique applications in many fields such as plasma, surface-enhanced optics, sensors and catalysts. However, how to fabricate high-coverage and densely-packed Nano-SAMs in a limited time is still a challenge, especially for the ultra-thin Nano-SAMs ( 10 nm). In this paper, high-coverage and densely-packed ultrathin Nano-SAMs were fabricated by using ultra-small nanoparticles (e.g. nanoclusters and quantum dots) to deposit onto substrates in organic/water mixture via the continuous dropping of organic solvent. Compared with the conventional methods such as the electrophoresis deposition and the soaking method, nanoparticles could formed higher coverage and more densely-packed Nano-SAMs with few defects through a shorter period of time by using this mixed-solvent precipitation method. This mixed-solvent precipitation presents a facile approach to design and construct high-coverage densely-packed Nano-SAMs.

机译：纳米粒子自组装单分子膜（Nano-SAMs）在许多领域（例如等离子体，表面增强光学，传感器和催化剂）的独特应用引起了极大的关注。然而，如何在有限的时间内制造高覆盖率和密集堆积的纳米SAM仍然是一个挑战，尤其是对于超薄纳米SAM（<10 nm）而言。在本文中，通过使用超小纳米颗粒（例如纳米团簇和量子点）通过连续滴加有机溶剂将其沉积在有机/水混合物中的基质上，从而制备了高覆盖度和密集堆积的超薄纳米SAM。与常规方法如电泳沉积和浸泡法相比，使用这种混合溶剂沉淀法，纳米粒子可以在较短的时间内形成更高的覆盖率和堆积更紧密的纳米SAM，且几乎没有缺陷。这种混合溶剂沉淀为设计和构建高覆盖率的密集纳米Nano-SAM提供了一种简便的方法。

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来源
《Applied Surface Science》 |2019年第28期|526-531|共6页
作者
Wu Shan; Gao Guanbin; Zhang Shasha; Zhu Wenbo; Wang Liang; Chen Rui; Zhang Wenkang; Wang Juncheng; Yang Feifei; Li Jing; Shen Lei; Sun Taolei;
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作者单位

Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, 122 Luoshi Rd, Wuhan 430070, Peoples R China;

Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, 122 Luoshi Rd, Wuhan 430070, Peoples R China;

Wuhan Vocat Coll Software & Engn, Sch Arts & Media, 117 Guanggu Rd, Wuhan 430205, Hubei, Peoples R China;

Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, 122 Luoshi Rd, Wuhan 430070, Peoples R China;

Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, 122 Luoshi Rd, Wuhan 430070, Peoples R China;

Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, 122 Luoshi Rd, Wuhan 430070, Peoples R China;

Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, 122 Luoshi Rd, Wuhan 430070, Peoples R China;

Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, 122 Luoshi Rd, Wuhan 430070, Peoples R China;

Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, 122 Luoshi Rd, Wuhan 430070, Peoples R China;

Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, 122 Luoshi Rd, Wuhan 430070, Peoples R China;

Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, 122 Luoshi Rd, Wuhan 430070, Peoples R China;

Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, 122 Luoshi Rd, Wuhan 430070, Peoples R China;

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正文语种 eng
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关键词
Solvent precipitation method; Self-assembled monolayers; Nanoparticles; Densely-packed;

机译：溶剂沉淀法自组装单层纳米颗粒密集堆积;

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Mixed-solvent precipitation: A facile approach for nanoparticle self-assembled monolayers

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