High performance SERS platforms via parametric optimization of the laser-assisted photodeposition of silver and gold nanoparticles

TY - JOUR

T1 - High performance SERS platforms via parametric optimization of the laser-assisted photodeposition of silver and gold nanoparticles

AU - Hoffmann, Manuel

AU - Wackerow, Stefan

AU - Abdolvand, Amin

AU - Zolotovskaya, Svetlana A.

N1 - Funding: Engineering and Physical Sciences Research Council (EP/P008135/2, EP/S017445/1).

PY - 2021/9/1

Y1 - 2021/9/1

N2 - Parametric optimization of the laser-assisted photocatalytic growth of Ag and Au nanoparticles for high SERS enhancement factor performance informed by design of experiment is demonstrated. The photodeposition process was divided into two phases –seeding and growth–in order to achieve the highest possible nanoparticle surface coverage for the size range from 10 to 100 nm. A substantial difference in the parameter effects between the Ag and Au seeding and growth was found. The SERS performance of the photodeposited Ag and Au nanostructures was evaluated at 532, 633 and 785 nm with thiophenol as a probe molecule. A high-enhancement broadband SERS operation was attained with Ag nanostructure grown at high laser fluences. The SERS enhancement factors of 10 5 were achieved with both Ag and Au nanostructures.

AB - Parametric optimization of the laser-assisted photocatalytic growth of Ag and Au nanoparticles for high SERS enhancement factor performance informed by design of experiment is demonstrated. The photodeposition process was divided into two phases –seeding and growth–in order to achieve the highest possible nanoparticle surface coverage for the size range from 10 to 100 nm. A substantial difference in the parameter effects between the Ag and Au seeding and growth was found. The SERS performance of the photodeposited Ag and Au nanostructures was evaluated at 532, 633 and 785 nm with thiophenol as a probe molecule. A high-enhancement broadband SERS operation was attained with Ag nanostructure grown at high laser fluences. The SERS enhancement factors of 10 5 were achieved with both Ag and Au nanostructures.

UR - https://www.scopus.com/pages/publications/85113430339

U2 - 10.1364/OME.437900

DO - 10.1364/OME.437900

M3 - Article

SN - 2159-3930

VL - 11

SP - 3079

EP - 3098

JO - Optical Materials Express

JF - Optical Materials Express

IS - 9

ER -