Researchers have used multivalent amidinium ligands to boost perovskite solar cell efficiency to 25.4%, achieving over 95% stability after 1,100 hours at 85  C. The proposed approach enables ...
Germany lacks thousands of state prosecutors to effectively fight organized crime, the German Association of Judges has warned. But others say the judicial system's problems run much deeper than that.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback