Methylammonium-free inverted perovskite solar cell achieves 23.17% efficiency

Scientists in Japan have fabricated an inverted pervoskite cell with a new bond/charge regulated defect passivation technique consisting of introducing bifunctional molecules onto the perovskite absorber. The device exhibited a low open circuit voltage deficit and remarkable stability.Researchers at Japan's National Institute for Materials Science (NIMS) have fabricated a solar cell with a "n-i-p" layout and a perovskite material that doesn't contain methylammonium (MA) molecules. These molecules have intrinsic thermal instability and contribute to increasing the typical thermal instability ...

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