Publications by authors named "Vincent J-Y Lim"
Article Synopsis
- Lattice dynamics play a crucial role in the performance of photovoltaic materials by influencing factors like disorder, cooling, recombination, and charge transport.
- The study focuses on soft metal-halide perovskites, which show unique low-frequency Raman spectra, the cause of which has been widely debated.
- Using advanced spectroscopic techniques, the researchers propose that the central Raman peak arises from a combination of broadening of low-energy phonon modes and Bose-Einstein statistics, enhancing our understanding of how light interacts with these materials in solar energy applications.
Alloying is widely adopted for tuning the properties of emergent semiconductors for optoelectronic and photovoltaic applications. So far, alloying strategies have primarily focused on engineering bandgaps rather than optimizing charge-carrier transport. Here, we demonstrate that alloying may severely limit charge-carrier transport in the presence of localized charge carriers (e.
View Article and Find Full Text PDFModification of surface properties by polymer adsorption is a widely used technique to tune interactions in molecular experiments such as nanopore sensing. Here, we investigate how the ionic current noise through solid-state nanopores reflects the adsorption of short, neutral polymers to the pore surface. The power spectral density of the noise shows a characteristic change upon adsorption of polymer, the magnitude of which is strongly dependent on both polymer length and salt concentration.
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