在Au-Branch-on-Au-Plate异构结构中设计黑体吸收
Jin Ji1, Junsheng Wang1, Tingting Jiang1
1Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
Inorganic chemistry
|July 16, 2024
概括
研究人员使用l-氨酸 (l-Cys) 连接物调整了金三角形纳米板 (AuTN) 种子上的金 (Au) 增长. 这为等离子应用创造了可调整的黑色Au-branch-on-AuTN异构结构,具有全频谱吸收.
科学领域:
- 纳米材料科学 科学 纳米材料科学
- 塑制剂是一种塑制剂.
- 表面化学 表面化学
背景情况:
- 控制纳米材料的生长对于调整光学特性至关重要.
- 金三角纳米板 (AuTNs) 是多功能等离子体平台.
- 干效应显著影响纳米粒子生长动态.
研究的目的:
- 调查l-氨酸 (l-Cys) 对黄金 (Au) 生长模式对AuTN种子的影响.
- 设计具有可调节光学特性的Au-on-AuTN异构结构.
- 探索这些异构结构在等离子体应用中的潜力.
主要方法:
- 利用l-氨酸 (l-Cys) 作为一种强大的配体,以控制AuTN种子上的Au生长.
- 研究了不同的生长模式:层次,层加岛和岛 (Volmer-Weber).
- 使用光谱学描述了由此产生的Au-on-AuTN异构结构及其光学特性.
主要成果:
- 实现了AU生长模式的连续调整,从层次到岛屿 (Volmer-Weber).
- 工程 Au-branch-on-AuTN 结构显示全频谱吸收 (400-1300 nm) 和可调的黑色.
- 证明黑体吸收来自于平衡的粒子内部局部表面等离子体共振 (LSPR) 合.
结论:
- 使用l-Cys强大的配体控制可以精确设计Au-on-AuTN异构结构.
- 可调整的黑色和广泛的吸收使这些异构结构成为吸光器,光声成像和光热疗法的有前途.
- 连接物控制策略可扩展到其他混合材料系统.
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