TY - JOUR

T1 - On-Demand Plasmon Nanoparticle-Embedded Laser-Induced Periodic Surface Structures (LIPSSs) on Silicon for Optical Nanosensing

AU - Бородаенко, Юлия

AU - Сюбаев, Сергей

AU - Хайруллина, Евгения Мусаевна

AU - Тумкин, Илья Игоревич

AU - Гурбатов, Станислав

AU - Мироненко, Александр

AU - Мицай, Евгений

AU - Жижченко, Алексей

AU - Модин, Евгений

AU - Гуревич, Евгений

AU - Кучмижак, Александр

N1 - Publisher Copyright: © 2022 The Authors. Advanced Optical Materials published by Wiley-VCH GmbH.

PY - 2022/11/4

Y1 - 2022/11/4

N2 - Ultrashort laser pulses deliver electromagnetic energy to matter causing its localized heating that can be used for both material removal via ablation/evaporation and driving interface chemical reactions. Here, it is shown that both mentioned processes can be simultaneously combined within straightforward laser nanotexturing of Si wafer in a functionalizing solution to produce a practically relevant metal–semiconductor surface nano-morphology. Such unique hybrid morphology represents deep-subwavelength Si laser-induced periodic surface structures (LIPSSs) with an extremely short period down to 70 nm and high-aspect-ratio nano-trenches loaded with controllable amount of plasmonic nanoparticles formed via laser-induced decomposition of the precursor noble-metal salts. Moreover, heat localization driving reduction process is utilized to produce surface morphology locally decorated with dissimilar plasmon-active nanoparticles. Light-absorbing deep-subwavelength Si LIPSSs loaded with controllable amount of noble-metal nanoparticles represent an attractive architecture for plasmon-related applications such as optical nanosensing where efficient coupling of the propagating optical waves to highly localized electromagnetic “hot spots” is a mandatory requirement. To support this statement, applicability of such hybrid morphology for fluorescence-based detection of nanomolar concentrations of mercury cations in solution is demonstrated.

AB - Ultrashort laser pulses deliver electromagnetic energy to matter causing its localized heating that can be used for both material removal via ablation/evaporation and driving interface chemical reactions. Here, it is shown that both mentioned processes can be simultaneously combined within straightforward laser nanotexturing of Si wafer in a functionalizing solution to produce a practically relevant metal–semiconductor surface nano-morphology. Such unique hybrid morphology represents deep-subwavelength Si laser-induced periodic surface structures (LIPSSs) with an extremely short period down to 70 nm and high-aspect-ratio nano-trenches loaded with controllable amount of plasmonic nanoparticles formed via laser-induced decomposition of the precursor noble-metal salts. Moreover, heat localization driving reduction process is utilized to produce surface morphology locally decorated with dissimilar plasmon-active nanoparticles. Light-absorbing deep-subwavelength Si LIPSSs loaded with controllable amount of noble-metal nanoparticles represent an attractive architecture for plasmon-related applications such as optical nanosensing where efficient coupling of the propagating optical waves to highly localized electromagnetic “hot spots” is a mandatory requirement. To support this statement, applicability of such hybrid morphology for fluorescence-based detection of nanomolar concentrations of mercury cations in solution is demonstrated.

KW - femtosecond laser pulses

KW - laser-induced periodic surface structures

KW - metal–semiconductor nanostructures

KW - optical sensing

KW - surface-enhanced fluorescence

UR - http://www.scopus.com/inward/record.url?scp=85135522827&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/a1a4f03f-ebc4-38f8-a05f-928d7fccb075/

U2 - 10.1002/adom.202201094

DO - 10.1002/adom.202201094

M3 - Article

VL - 10

JO - Advanced Optical Materials

JF - Advanced Optical Materials

SN - 2195-1071

IS - 21

M1 - 2201094

ER -