Tag Archives: ultrafast spectroscopy

Investigating the Dynamics of Charge Transfer in Solar Cells

Tandem organic solar cells have drawn much attention in the field of solar energy. They consist of two monolithically connected cells enabling a broader absorption spectrum and efficient use of photon energy. In a Nature Communications article, entitled “High performance tandem organic solar cells via a strongly infrared-absorbing narrow bandgap acceptor,” researchers use the ultrafast … Continue reading

March 7, 2021 Blog, Light Conversion, Spectroscopy

Observing the Surface-Enhanced Signal of Water in an Aqueous Dispersion

Researchers from the Polish Academy of Sciences, Lodz University of Technology, and the University of Warsaw use a PHAROS laser from Light Conversion to observe the surface-enhanced (SE) signal of water in an aqueous dispersion of silver nanoparticles. The observation techniques used were spontaneous Surface-Enhanced Raman Spectroscopy (SERS) and Surface-Enhanced Femtosecond Stimulated Raman Spectroscopy (SE-FSRS) processes. This work opens up exciting … Continue reading

January 26, 2021 Blog, Lasers, Light Conversion, Spectroscopy

Studying Ultrafast Relaxation Processes in Ag Nanocubes

Noble metal nanoparticles patterned in ordered arrays interact and generate plasmonic surface lattice resonances. Up to now, the assumption was that such nanoparticles are static. But researchers from the Kaunas University of Technology in Lithuania have demonstrated that this is not the case at ultrafast time scales. They used Transient Absorption Spectroscopy (TAS) to study … Continue reading

November 23, 2020 Blog, Lasers, Light Conversion, Spectroscopy

Investigating Photophysical Properties of Molecular Materials

Intermolecular interaction and packing behavior play major roles in organic electronics. Researchers from the University of Cologne investigated the photophysical properties of molecular materials using the HARPIA spectroscopy system from Light Conversion. Features of the HARPIA comprehensive spectroscopy system include: Femtosecond multi-pulse transient absorption and reflection measurements Femtosecond fluorescence upconversion Time-resolved femtosecond stimulated Raman scattering … Continue reading

November 3, 2020 Blog, Light Conversion, Spectroscopy