Size-controllable and uniform gold bumpy nanocubes for single-particle-level surface-enhanced Raman scattering sensitivity
文献信息
Hyejin Chang, Yoon Young Lee, Hye Eun Lee, Hyo-Yong Ahn, Eunbyeol Ko, Ki Tae Nam
Gold nanocubes modified to form roughened structures, namely, gold bumpy nanocubes (Au BNCs), with very strong and uniform single-particle surface-enhanced Raman scattering (SERS) intensity were developed. The Au BNCs were synthesized by controlled regrowth, competing with 4-aminothiophenol during gold nanocube growth. Under controlled conditions, Au BNCs of various sizes were successfully generated while maintaining a cubic outline. As the bumpy surfaces of the Au BNCs increased the number of hot spots on a single cubic nanoparticle, these nanoparticles exhibited 15-times stronger SERS than normal cubic nanoparticles. We expect that this unique nanostructure will be applicable in versatile fields as an ultrasensitive SERS nanoprobe or nanoantenna owing to its cubic outline and high uniformity, as well as the ease of particle size adjustment.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














