Coloring control by nanoscale surface coarseness

通过纳米级表面粗糙度控制着色

• 批准号: 24656108
• 负责人: KATO Takahisa
• 金额: $ 2.5万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2013-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24656108/
• 关键词: 金ナノ粒子; スパッタリング; プラズモン; 吸収ピーク; 波長シフト; 色

A certain kind of nano size metal structures reveals a characteristic color. It is known that the gold particles of nano size present red color, and it is seldom known that they present other colors. In this study blue or green colored structure other than red were generated using a dry method by performing coloring control using nano level surface roughness. FE-SEM observation revealed the precise shape of nanostructure. The 3-dimensional calculation models were constructed from the FE-SEM observation. Plasmon absorption peaks were identified by carrying out optical measurements. Through the electromagnetic field calculation it was clarified that the plasmon peak wavelength of gold nano structure was determined by its size, shape and spacing. Finally the color of the nano structure can be expected generally. These results may enable the design of LSPR devices by controlling the characteristics of the nanostructures, such as their size, shape, number density and coverage.

一种纳米尺度的金属结构呈现出一种特有的颜色。众所周知，纳米级的金粒子呈现红色，而很少有人知道它们会呈现其他颜色。在本研究中，通过使用纳米级表面粗糙度执行着色控制，使用干法生成除红色之外的蓝色或绿色结构。Fe-SEM观察揭示了纳米结构的精确形状。根据有限元-扫描电子显微镜的观察结果建立了三维计算模型。通过光学测量确定了等离子体激元的吸收峰。通过电磁场计算，阐明了金纳米结构的等离子体峰波长由其尺寸、形状和间距决定。最后，纳米结构的颜色大体上可以预期。这些结果可以通过控制纳米结构的特性来设计LSPR器件，例如它们的尺寸、形状、数密度和覆盖率。

项目成果

Growth of Au nanoparticle films and the effect of nanoparticle shape on plasmon peak wavelength

Au纳米粒子薄膜的生长及纳米粒子形状对等离激元峰值波长的影响

• 发表时间: 2014
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: S. Horikoshi;N. Matsumoto;Y. Omata and T. Kato
• 通讯作者: Y. Omata and T. Kato

スパッタ法による金薄膜の成長過程およびプラズモン吸収に関する研究

溅射金薄膜生长过程及等离子体吸收研究

• 发表时间: 2012
• 作者: Satoko Horikoshi;Naohiro Matsumoto;Yukiko Omata and Takahisa Kato;堀越理子,松本直浩,加藤孝久
• 通讯作者: 堀越理子,松本直浩,加藤孝久

Growth of Au nanoparticle films and the effect of nanoparticle shape on the plasmon peak wavelength

Au纳米粒子薄膜的生长及纳米粒子形状对等离激元峰值波长的影响

• 发表时间: 2014
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: Satoko Horikoshi;Naohiro Matsumoto;Yukiko Omata and Takahisa Kato
• 通讯作者: Yukiko Omata and Takahisa Kato