ArticleScientific reports2019
The importance of plasmonic heating for the plasmon-driven photodimerization of 4-nitrothiophenol.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Metal/Si Nanowire Arrays for Hot Electron Catalysis.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Optical, Chemical, and Biological Detection Methods of Microplastics and Nanoplastics.ACS measurement science au · 2026Review
- Nanocellulose Membranes for Plasmon-Enhanced Removal of Organic Pollutants from Water.ACS applied nano materials · 2026Article
- Auger-Excited Photoluminescence from Gold Nanoflowers.ACS nano · 2025Article
- Revising Model Reactions in Plasmonic Chemistry: From Nitrothiophenol Coupling to Alkoxyamine Homolysis.ACS catalysis · 2025Article
- Nanomaterials in PCR: exploring light-to-heat conversion mechanisms and microfluidic integration.Microsystems & nanoengineering · 2025Review
- Optoplasmonic Effects in Highly Curved Surfaces for Catalysis, Photothermal Heating, and SERS.ACS applied materials & interfaces · 2023Article
- 4-Aminothiophenol Photodimerization Without Plasmons.Angewandte Chemie (International ed. in English) · 2022Article
- Microscopic Understanding of Reaction Rates Observed in Plasmon Chemistry of Nanoparticle-Ligand Systems.The journal of physical chemistry. C, Nanomaterials and interfaces · 2022Article
- The electronic structure of the metal-organic interface of isolated ligand coated gold nanoparticles.Nanoscale advances · 2022Article
- The time-resolved hard X-ray diffraction endstation KMC-3 XPP at BESSY II.Journal of synchrotron radiation · 2021Article
- Establishing plasmon contribution to chemical reactions: alkoxyamines as a thermal probe.Chemical science · 2021Article
- The Effect of Surface Modification of Gold Nanotriangles for Surface-Enhanced Raman Scattering Performance.Nanomaterials (Basel, Switzerland) · 2020Review
- Thermal effects - an alternative mechanism for plasmon-assisted photocatalysis.Chemical science · 2020Article
- Spiked gold nanotriangles: formation, characterization and applications in surface-enhanced Raman spectroscopy and plasmon-enhanced catalysis.RSC advances · 2020Article
- Simple experimental procedures to distinguish photothermal from hot-carrier processes in plasmonics.Light, science & applications · 2020Review
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Authors and funding
7 authors.
Funding
Abstract
Metal nanoparticles form potent nanoreactors, driven by the optical generation of energetic electrons and nanoscale heat. The relative influence of these two factors on nanoscale chemistry is strongly debated. This article discusses the temperature dependence of the dimerization of 4-nitrothiophenol (4-NTP) into 4,4'-dimercaptoazobenzene (DMAB) adsorbed on gold nanoflowers by Surface-Enhanced Raman Scattering (SERS). Raman thermometry shows a significant optical heating of the particles. The ratio of the Stokes and the anti-Stokes Raman signal moreover demonstrates that the molecular temperature during the reaction rises beyond the average crystal lattice temperature of the plasmonic particles. The product bands have an even higher temperature than reactant bands, which suggests that the reaction proceeds preferentially at thermal hot spots. In addition, kinetic measurements of the reaction during external heating of the reaction environment yield a considerable rise of the reaction rate with temperature. Despite this significant heating effects, a comparison of SERS spectra recorded after heating the sample by an external heater to spectra recorded after prolonged illumination shows that the reaction is strictly photo-driven. While in both cases the temperature increase is comparable, the dimerization occurs only in the presence of light. Intensity dependent measurements at fixed temperatures confirm this finding.
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