Perovskite solar cells (PSCs) have accomplished an efficiency of ~25%. The most commonly used perovskite solar cell is methyl-ammonium lead iodide. As all PSCs with PCEs > 20% use Pb-based perovskites ...

Figure 2. Initial electron cooling dynamics on the ps time scale. (A) Pseudocolor plot (intensity) of TR-2PPE spectra as a function of energy (above E F) and pump–probe delay (Δt) for CH 3 NH 3 PbI 3 ...

Abstract: In order to overcome some unsolved problems of lead iodide purification such as lack of stoichiometry, decomposition, and polytype admixture, several purification methods were compared. Lead ...

Can humans control the weather? A look at a few examples where they have tried and failed, as the future of geoengineering ...

Bullpen blows lead after early Clay Holmes hook as Mets’ win streak ends in brutal fashion By . Mike Puma. Published June 13, 2025. Updated June 14, 2025, 1:05 a.m. ET.

The U.S. Environmental Protection Agency announced today that it is providing $2,138,000 in funding to Texas to address lead in drinking water at schools and child care facilities. This initiative ...

Colo. (KRDO) -- U.S. Colorado Senator Michael Bennet, alongside Senator Jim Justice of West Virginia, has introduced a new bill to reduce exposure to lead in old water pipes. According to senators ...

As Louisiana Rep. Kimberly Landry Coates stood before her colleagues in the state’s Legislature she warned that the bill she was presenting might “seem strange” or even ...

Technically, LEAD initially leverages the orthogonal decomposition analysis for feature decomposition. Then, LEAD builds instance-level decision boundaries to adaptively identify target-private data.

Astros take lead on wild pitch and defeat Guardians 5-3 in 10 innings. 1 of 5 | Houston Astros’ Jeremy Pena, left, tags Cleveland Guardians’ Gabriel Arias, right, out on a steal attempt during the ...

Michael Horowitz, a former internal watchdog at the Justice Department, will lead the Federal Reserve’s inspector-general office, the central bank said Friday. Horowitz succeeds Mark Bialek, who ...

The group Lead-Safe Schools MKE is demanding more transparency and accountability from Milwaukee Public Schools regarding lead contamination.