Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 304, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2019.127218
Keywords
The hybrid; CdS/Au; Hydrothermal method; Surface enhanced Raman scattering; Discrete dipole approximation (DDA); Surface plasmon resonance (SPR)
Funding
- National Natural Science Foundation [11764046, 11304275, 11764047, 61564010]
- Applied Basic Research Foundation of Yunnan Province [2017FB009]
- Innovative Talents of Science and Technology Plan Projects of Yunnan Province [2014HB010]
Ask authors/readers for more resources
The CdS flower-like nanomaterials (FLNMs) were synthesized by a facile hydrothermal method. With the help of the hydrophilic group on polyvinyl pyrrolidone molecules, the CdS FLNMs were decorated with Au nanoparticles (NPs) through in situ chemical reduction of HAuCl4. The hybrid CdS/Au FLNMs were investigated through surface-enhanced Raman scattering (SERS). It is found that they can detect crystal violet, Rhodamine B and malachite green as low as 1.0 x 10(-8) M, 1.0 x 10(-8) M, and 1.0 x 10(-7) M respectively. In addition, the theoretical simulation was carried out by the discrete dipole approximation (DDA) method. It is found that the strong electric field of Au dimer and the coupling electric field between Au NPs and CdS FLNMs makes a significant improvement in SERS. Therefore, the hybrid CdS/Au FLNMs have a potential in applications such as detecting organics.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available