Publications by authors named "Uriel Tayvah"
Molybdenum disulfide (MoS) has been extensively studied in its commonly occurring semiconducting 2H phase. Recent synthetic advances have enabled the bulk synthesis of the catalytically promising metallic 1T phase. However, the conductivity of bulk 1T-MoS has not been well characterized to ascertain the carrier transport properties.
View Article and Find Full Text PDFArticle Synopsis
- The challenge in researching iridium-based water oxidation catalysts is to find a suitable molecular precatalyst that produces clear and effective active species for catalysis.
- Previous work suggested that the resting state of the catalyst might be a μ-oxo-bridged Ir dimer, but the exact structure of the active species remains unknown.
- New findings revealed that a mixture of dinuclear iridium species could effectively catalyze oxygen evolution without needing complex activation steps, paving the way for better understanding and designing efficient active species in future studies.
Terahertz (THz) spectroscopy is a powerful tool for unambiguously extracting complex-valued material properties (e.g., refractive index, conductivity, etc.
View Article and Find Full Text PDFTerahertz (THz) spectroscopy provides a noncontact method to measure the ultrafast dynamics and photoconductivity of mobile carriers in semiconducting materials. This has proven useful in studying artificial photosynthesis devices which use semiconductor photoelectrodes. We present a brief introduction to optical-pump THz-probe (OPTP) spectroscopy, a technique that provides unique and useful insight into interfacial electron transfer (from the surface-attached dye to the conduction band of the semiconductor) in dye-sensitized photoelectrochemical cells.
View Article and Find Full Text PDFNovel binary gene expression tools like the LexA-LexAop system could powerfully enhance studies of metabolism, development, and neurobiology in Drosophila However, specific LexA drivers for neuroendocrine cells and many other developmentally relevant systems remain limited. In a unique high school biology course, we generated a LexA-based enhancer trap collection by transposon mobilization. The initial collection provides a source of novel LexA-based elements that permit targeted gene expression in the corpora cardiaca, cells central for metabolic homeostasis, and other neuroendocrine cell types.
View Article and Find Full Text PDF