POWER-INDEPENDENT MICROWAVE INSTANTANEOUS FREQUENCY MEASUREMENT BASED ON COMBINATION OF BRILLOUIN GAIN AND LOSS SPECTRA

Photonics-assisted microwave instantaneous frequency measurement (IFM) is considered as a promising technique Hygiene for detecting an unknown radio-frequency (RF) signal, which has advantages of broad frequency measurement range and fast processing speed.Up to date, there is no photonics-assisted IFM system that can essentially measure an unknown

Summary: Chemical passivation of defective perovskite surface is a fundamental strategy to stabilize solar cell operation by impeding the defect-dominant surface ion migration.Here, we show that the configuration of organic cations plays a key role in determining their surface adsorption energetics at various perovskite facets, which will strongly