Institute of Physical and Theoretical Chemistry, Wroclaw University of Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland.
Phys Chem Chem Phys. 2014 Jan 7;16(1):71-8. doi: 10.1039/c3cp53457j.
This work describes the interaction between femtosecond laser pulses (~130 fs, 800 nm) and gold nanorods (NRs) leading to reshaping of the NRs. We focus on the investigation of structural changes of the NRs and the parameters influencing the reshaping, like surface modification using sodium sulphide, laser power and the position of the longitudinal surface plasmon resonance band (l-SPR) with respect to the laser wavelength. A thermogravimetric analysis experiment is performed to examine changes in the composition of NRs upon heating. A new type of banana-shaped NPs is described and the conditions of their appearance are discussed.
这项工作描述了飞秒激光脉冲(~130fs,800nm)与金纳米棒(NRs)之间的相互作用,导致了 NRs 的形状变化。我们专注于研究 NRs 的结构变化以及影响形状变化的参数,如使用硫化钠进行表面修饰、激光功率以及纵向表面等离子体共振带(l-SPR)相对于激光波长的位置。进行了热重分析实验以检查 NRs 在加热时的组成变化。描述了一种新型的香蕉形 NPs,并讨论了它们出现的条件。