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Lingxia Chang

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Articles by Lingxia Chang

Rationally designed particle-in-aperture hybrid arrays as large-scale, highly reproducible SERS substrates

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By Shunsheng Ye, Hongyu Wang, Hailong Wang, Lingxia Chang
| Royal Society of Chemistry Verified
A large-scale, uniform array of particle-in-aperture (PIA) hybrid architectures for highly reproducible surface-enhanced Raman spectroscopy (SERS) is rationally designed and prepared via electrostatic self-assembly of Au nanospheres and vertical deposition of Ag. By controlling the thickness of the Ag coating, polarization-independent ring-shaped hot spots with tunable width can be created around individual nanospheres, offering far higher Raman enhancements than the bare Au nanosphere array...
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Facile fabrication of homogeneous and gradient plasmonic arrays with tunable optical properties via thermally regulated surface charge density

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By Hongyu Wang, Hongyang Su, Shunsheng Ye, Lingxia Chang
| Royal Society of Chemistry Verified
A facile strategy is reported for electrostatic self-assembly of homogeneous and gradient plasmonic nanoparticle arrays with tunable interparticle distances and optical properties. The interparticle distance is dominated by the surface charge density of the substrate, which is tuned via thermal annealing according to the temperature-dependent molecular mobility of the polymer.
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