Poly(vinylpyrrolidone)‐Free Multistep Synthesis of Silver Nanoplates with Plasmon Resonance in the Near Infrared Range
Source abstract
Abstract
Abstract Herein, a poly(vinylpyrrolidone) (PVP)‐free method is described for synthesizing Ag nanoplates that have localized surface plasmon resonance in the near‐infrared (NIR) range. Citrate‐capped Ag spherical nanoparticles are first grown into small Ag nanoplates that resonate in the range of 500–800 nm. The small Ag nanoplates are used as seeds to further grow into large Ag nanoplates with a lateral dimension of 100–600 nm and a plasmon resonance wavelength of 800–1660 nm and above. The number of growth steps can be increased as desired. Without introducing additional citrate into the solutions of small Ag nanoplate seeds, large Ag nanoplates can be synthesized within minutes. The entire synthesis is completely PVP free, which promotes the nanoparticle growth along the lateral direction to form large Ag nanoplates. The multistep growth and the minimum usage of citrate are essential for the fast growth of high‐aspect‐ratio Ag nanoplates resonating in the NIR range.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Plasmonic and Surface Plasmon Research · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry and Macromolecules Innovation Institute Virginia Tech Blacksburg VA 24061 USA
Division of Nanoscience Academy of Integrated Science Virginia Tech Blacksburg VA 24061 USA
Funding
Virginia Tech Institute for Critical Technology and Applied Science (ICTAS) Junior Faculty Award · ICTAS Diversity and Inclusion Seed Grant · Department of Chemistry
References (37)
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