Surface Lattice Plasmon Resonances by Direct In Situ Substrate Growth of Gold Nanoparticles in Ordered Arrays.
Surface Lattice Plasmon Resonances by Direct In Situ Substrate Growth of Gold Nanoparticles in Ordered Arrays.
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DOI：
10.1002/adma.202205330
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发表时间：
2022-09
影响因子：
29.4
通讯作者：
Scarabelli, Leonardo
中科院分区：
文献类型：
--
作者：
Vinnacombe-Willson, Gail A.;Conti, Ylli;Jonas, Steven J.;Weiss, Paul S.;Mihi, Agustin;Scarabelli, Leonardo
等离子体纳米粒子在基底上的精确排列对于设计具有合理的电子、光学和磁性的光电子、传感器和超材料是重要的。自下而上的合成提供了无与伦比的控制形态和光学响应的个别等离子体构建块。通常，通过自下而上的湿化学制备的纳米颗粒的掺入从胶体的批量合成开始，这需要耗时且难以规模化的步骤，如配体交换和自组装。在此，我们开发了一种非传统的自下而上的湿化学合成方法来制备金纳米颗粒有序阵列。可水处理的羟丙基纤维素支架有助于还原剂化学油墨的图案化，在还原剂化学油墨上选择性地发生纳米颗粒生长。在快速合成步骤（<10分钟）之后产生在可见光区域和近红外（品质因子>20）中表现出晶格等离子体共振的阵列，所有这些都没有洁净室制造、专用设备或自组装，构成了建立原位生长方法的主要一步。我们进一步证明了这种方法的技术能力，通过调制的颗粒大小，形状和阵列间距直接在基板上。最终，建立对原位生长的基本理解有可能为等离子体材料的制造提供信息，为波导、激光平台和等离子体传感器的原位生长制造打开大门。金纳米粒子等离子体有序阵列是通过一种非常规的原位方法制备的，其中金前体直接在基底上的特定预图案化位置处还原。纳米粒子的形态和阵列周期性很容易调整使用这种方法。该基板通过晶格等离子体共振的出现表现出远场等离子体耦合，构成了原位生长技术向前迈出的重要一步。
Precise arrangements of plasmonic nanoparticles on substrates are important for designing optoelectronics, sensors, and metamaterials with rational electronic, optical, and magnetic properties. Bottom-up synthesis offers unmatched control over morphology and optical response of individual plasmonic building blocks. Usually, the incorporation of nanoparticles made by bottom-up wet chemistry starts from batch synthesis of colloids, which requires time-consuming and hard-to-scale steps like ligand exchange and self-assembly. Herein, we develop an unconventional bottom-up wet-chemical synthetic approach for producing gold nanoparticle ordered arrays. Water-processable hydroxypropyl cellulose stencils facilitate the patterning of a reductant chemical ink on which nanoparticle growth selectively occurs. Arrays exhibiting lattice plasmon resonances in the visible region and near infrared (quality factors >20) were produced following a rapid synthetic step (<10 min), all without cleanroom fabrication, specialized equipment, or self-assembly, constituting a major step forward establishing in situ growth approaches. We further demonstrate the technical capabilities of this method through modulation of the particle size, shape, and array spacings directly on the substrate. Ultimately, establishing a fundamental understanding of in situ growth has the potential to inform the fabrication of plasmonic materials, opening the door for in situ growth fabrication of waveguides, lasing platforms, and plasmonic sensors. Gold nanoparticle plasmonic ordered arrays were fabricated by an unconventional in situ approach where gold precursors are reduced directly at specific pre-patterned locations on substrates. Nanoparticle morphology and array periodicity are easily tuned using this method. The substrates exhibit far-field plasmonic coupling via the emergence of lattice plasmon resonances, constituting a major step forward for in situ growth techniques.
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影响因子：
4.3
作者：
Casu, Alberto;Cabrini, Elisa;Pallavicini, Piersandro
通讯作者：
Pallavicini, Piersandro
影响因子：
29.4
作者：
Dumond, Jarrett;Low, Hong Yee
通讯作者：
Low, Hong Yee
DOI：
10.1002/anie.201509025
发表时间：
2016-01-18
期刊：
Angewandte Chemie (International ed. in English)
影响因子：
--
作者：
Giner-Casares JJ;Henriksen-Lacey M;García I;Liz-Marzán LM
通讯作者：
Liz-Marzán LM
影响因子：
35
作者：
Espinha A;Dore C;Matricardi C;Alonso MI;Goñi AR;Mihi A
通讯作者：
Mihi A
影响因子：
3.7
作者：
Berghuis, Anton Matthijs;Serpenti, Vincent;Rivas, Jaime Gomez
通讯作者：
Rivas, Jaime Gomez