Lu Youyou, Zhang Xuan, Zhao Liyan, Liu Hong, Yan Mi, Zhang Xiaochen, Mochizuki Kenji, Yang Shikuan
Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.
School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, China.
Nat Commun. 2023 Sep 20;14(1):5860. doi: 10.1038/s41467-023-41563-5.
The templating method holds great promise for fabricating surface nanopatterns. To enhance the manufacturing capabilities of complex surface nanopatterns, it is important to explore new modes of the templates beyond their conventional masking and molding modes. Here, we employed the metal-organic framework (MOF) microparticles assembled monolayer films as templates for metal electrodeposition and revealed a previously unidentified guiding growth mode enabling the precise growth of metallic films exclusively underneath the MOF microparticles. The guiding growth mode was induced by the fast ion transportation within the nanochannels of the MOF templates. The MOF template could be repeatedly used, allowing for the creation of identical metallic surface nanopatterns for multiple times on different substrates. The MOF template-guided electrochemical growth mode provided a robust route towards cost-effective fabrication of complex metallic surface nanopatterns with promising applications in metamaterials, plasmonics, and surface-enhanced Raman spectroscopy (SERS) sensing fields.
模板法在制造表面纳米图案方面具有巨大潜力。为了提高复杂表面纳米图案的制造能力，探索模板的新作用模式非常重要，这些模式超越了其传统的掩膜和成型模式。在此，我们采用金属有机框架（MOF）微粒组装单层膜作为金属电沉积的模板，并揭示了一种先前未被识别的引导生长模式，该模式能够使金属膜精确地仅在MOF微粒下方生长。这种引导生长模式是由MOF模板纳米通道内的快速离子传输诱导产生的。MOF模板可以重复使用，从而能够在不同基板上多次创建相同的金属表面纳米图案。MOF模板引导的电化学生长模式为经济高效地制造复杂金属表面纳米图案提供了一条可靠途径，在超材料、等离子体学和表面增强拉曼光谱（SERS）传感领域具有广阔的应用前景。
