Raman spectroscopy is a method that is based on inelastic scattering of light where the frequency of the photons may change depending on how it interacts with the sample. The light in these cases is ...

The strength of a Raman signal is inversely proportional to the fourth power of the wavelength of the scattered light. In practical terms, this means that the longer the excitation wavelength used to ...

While Raman spectroscopy has been hugely successful in a number of domains of chemistry and materials science, 1-3 one of the main challenges with performing Raman measurements is the inherently weak ...

SERS offers a greater signal-to-noise ratio than ordinary Raman spectroscopy, so it is useful in single-molecule detection or detecting analytes in low concentrations. Improvement of the spectroscopic ...

An international research team led by École Polytechnique Fédérale de Lausanne (EPFL) has built a perovskite solar cell with an electron transport layer (ETL) based on single-crystalline titanium ...