Plasmon chemistry

Overview

Plasmonic chemistry
Image: Dr. Robin Schürmann

Plasmonic nanoparticles such as gold or silver nanoparticles can trigger chemical processes in their environment upon excitation of their localized surface plasmon resonance. These processes can either be ascribed to the generation and transfer of hot charge carriers and/or to increased temperature. We study plasmon induced chemical reactions in a broad range of molecules such as halogenated nucleobases using surface-enhanced Raman scattering (SERS). Additionally, we employ synchrotron XPS to characterize the electronic structure of the metal-organic interface.

Plasmonic chemistry
Image: Dr. Robin Schürmann

Selected publications

Spatial Separation of Plasmonic Hot Electron Generation and a Hydrodehalogenation Reaction Center Using a DNA Wire; S. Kogikoski Junior, A. Dutta, I. Bald, ChemRxiv. Preprint. doi.org/10.26434/chemrxiv.14114306.v2

Decomposition of halogenated nucleobases by surface plasmon resonance excitation of gold nanoparticles; T. S. Marques, M. Śmiałek, R. Schürmann, I. Bald, M. Raposo, S. Eden  N. Mason Eur. Phys. J. D 74, 222 (2020)

Interaction of 4-Nitrothiophenol with low energy electrons - Implications for plasmon mediated reactions; R. Schürmann, T. F. M. Luxford, I. Vinklarek, J. Kocisek, M. Zawadzki and I. Bald J. Chem. Phys. 2020, 153, 104303.

Kinetics of molecular decomposition under irradiation of gold nanoparticles with nanosecond laser pulses - A 5-Bromouracil case study; T. S. Marques, R. Schürmann, K. Ebel, C. Heck, M. Śmiałek, S. Eden, N. Mason and I. Bald; J. Chem. Phys. 2020, 152, 124712.

Plasmon mediated decomposition of brominated nucleobases on silver nanoparticles - A surface enhanced Raman scattering (SERS) study; A. Dutta, R. Schürmann and I. Bald;  Eur. Phys. J. D, 2020, 74, 19.

Role of Valence Band States and Plasmonic Enhancement in Electron-Transfer-Induced Transformation of Nitrothiophenol; R. Schürmann, K. Ebel, C. Nicolas, A. R. Milosavljevic, I. Bald; J. Phys. Chem. Lett. 2019, 10, 3153-3158.

Amorphous Carbon Generation as a Photocatalytic Reaction on DNA-Assembled Gold and Silver Nanostructures; C. Heck, Y. Kanehira, J. Kneipp, I. Bald, Molecules 2019, 24, 2324.

Real-time monitoring of plasmon induced dissociative electron transfer to the potential DNA radiosensitizer 8-bromoadenine; R. Schürmann, I. Bald, Nanoscale 20179, 1951.