Will a perovskite on silicon tandem solar cell be certified at 36% efficiency or higher by June 30, 2027?
Answer in 248 daysMake your call
Topic
Every question has a closing date and a named source for how it resolves. Record your private call first, then see where the crowd landed.
Each question about materials science has a closing date and a named source that decides the answer. You record a private 0 to 100% call first, and only then see where the crowd landed.
No. Making calls is free. No money is involved, and each call is saved with a timestamp so you can check later how early you were.