Publications by authors named "L Spanier"
Article Synopsis
- Mesoporous titania thin films have potential applications in various fields such as sensors, batteries, and solar cells, but traditional methods of creating these films often require high temperatures that can damage the structures.
- A new approach using UV irradiation is presented as a low-temperature, energy-efficient alternative that achieves comparable crystallinity and size to conventional methods, without the drawbacks of high-temperature calcination.
- This UV method allows for the creation of diverse film morphologies and maintains consistent optical properties, demonstrating its adaptability with different titanium precursors for thin film fabrication.
Morphological Insights into the Degradation of Perovskite Solar Cells under Light and Humidity.
ACS Appl Mater Interfaces
June 2023
Perovskite solar cells (PSCs) have achieved competitive power conversion efficiencies compared with established solar cell technologies. However, their operational stability under different external stimuli is limited, and the underlying mechanisms are not fully understood. In particular, an understanding of degradation mechanisms from a morphology perspective during device operation is missing.
View Article and Find Full Text PDFArticle Synopsis
- Organic solar cells using wide band gap polymers and nonfullerene small-molecule acceptors show strong performance, but understanding their charge-transfer processes is still lacking.
- Researchers utilized Fano resonance signals to observe the dynamics of charge-transfer states in these materials, revealing additional dynamics occurring within a few picoseconds.
- The findings indicate that changes in the solvent during thin film deposition affect these dynamics, suggesting that the interaction at the interface between donor and acceptor molecules is crucial in generating transient signals observed in mid-infrared spectroscopy.
Heat shock proteins 90 (Hsp90) are promising therapeutic targets due to their involvement in stabilizing several aberrantly expressed oncoproteins. In cancerous cells, Hsp90 expression is elevated, thereby exerting antiapoptotic effects, which is essential for the malignant transformation and tumor progression. Most of the Hsp90 inhibitors (Hsp90i) under investigation target the ATP binding site in the N-terminal domain of Hsp90.
View Article and Find Full Text PDFThe effects of five processing forms on the content of phenolic compounds, antioxidant capacity, and saponin content in quinoa grains were evaluated. The processes included washing, washing followed by hydration, cooking (with or without pressure), and toasting. The highest content of phenolic compounds was obtained after cooking under pressure; however, these compounds also increased with grain washing.
View Article and Find Full Text PDF