2026
Кучмижак А. А., Мицай Е. В., Пильник А. А., Шевлягин А. В., Захаров А., Вавилов А., Левшакова А., Хайруллина Е., Маньшина А.
Optical Materials, Q2
Статьи в журналах
Zakharov A., Vavilov, A., Levshakova, A., Pilnik, A., Mitsai, E., Shevlyagin, A., Khairullina E., Kuchmizhak A., Manshina A. / All-Liquid Laser-Assisted Fabrication Of 3D-Textured Hybrid Metal–Semiconductor SERS Platforms // Optical Materials. – 2026. – Vol. 174. – P. 117955.
Volume 174, article number 117955, June 2026
We report an all-liquid, vacuum-free approach for fabricating hybrid metal–semiconductor platforms for surface-enhanced Raman scattering (SERS). Silicon wafers were textured into upright (Pyr-Si) and inverted pyramids (IPyr-Si) by anisotropic alkaline etching and Cu-assisted chemical etching, respectively, both yielding broadband antireflective morphologies. Subsequent laser-induced deposition (LID) enabled surfactant-free decoration of these 3D morphologies with Au, Ag, and bimetallic AuAg nanoparticles directly in solution. Scanning electron microscopy (SEM) images and energy dispersive X-ray spectroscopy (EDX) mapping versus exposure time reveal distinct Ag/Au growth modes consistent with plasmon-assisted and substrate-assisted pathways. SERS performance was benchmarked with rhodamine 6G (R6G) down to 10−12 M, delivering an enhancement factor of ∼2.9 × 109 for Ag/IPyr-Si. Practical sensing of ketoprofen and plasmon-driven catalytic dimerization of p-aminothiophenol (PATP) were also demonstrated. Compared with conventional vacuum-based techniques, this approach minimizes air exposure, lowers costs, and delivers conformal nanoparticle coverage on complex silicon morphologies, providing a scalable route to reproducible, high-performance SERS sensors and related optoelectronic interfaces.
https://doi.org/10.1016/j.optmat.2026.117955