创建和重建具有表面度的热色纳米棒
Zhiwei Li1, Jian Zhang1, Jianbo Jin1
1Department of Chemistry, University of California, Riverside, California 92521,United States.
Journal of the American Chemical Society
|September 14, 2021
概括
研究人员使用模板方法创建了形金纳米棒,为显示器和加密等先进应用程序提供可调节的热色特性.
科学领域:
- 纳米技术
- 材料科学
- 塑制剂
背景情况:
- 传统合成可以产生具有正曲率的纳米结构.
- 热力学因素有利于纳米结构的凸形状.
研究的目的:
- 为了展示形金纳米棒的制造.
- 探索这些形纳米结构的热色特性.
- 为形纳米结构开发通用模板策略.
主要方法:
- 在狭窄的空间内以种子为媒介生长黄金纳米棒.
- 使用氧化铁纳米棒作为模板来诱导表面.
- 通过溶剂老化研究结构重建和等离子特性调整.
主要成果:
- 成功合成了具有独特表面度的金纳米棒.
- 观察到一个新的度敏感的等离子带.
- 在中等温度下显示可调节的热色反应和结构重建.
- 能够显示颜色变化和加密信息的制造热色等离子膜.
结论:
- 模板策略可以创建形纳米结构.
- 形金纳米棒具有可调节的热色特性.
- 这种方法在传感,防伪,信息加密和显示方面具有潜在的应用.
相关概念视频
Alkali Metals
18.0K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
Table 1: Properties of the alkali metals
18.0K
Metallic Solids
16.4K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and...
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and...
16.4K


