Halide Site Engineering of Organic-Inorganic Hybrid Perovskites: A Facile Strategy for Frequency-Controllable Microwave Absorption.

The test results show that the tanδ values of the three materials in the 2–18 GHz frequency band exhibit an overall trend of “gentle rise at low frequencies, intense fluctuation at mid-high frequencies, and rebound at high frequencies”, with the overall loss level following the order MPB > MPI > MPIB, which is completely consistent with the order of their maximum reflection losses (42.41 dB, 39.83 dB, and 37.73 dB, respectively).

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