  Inorganic-organic perovskites semiconductors are becoming increasingly
interesting due to their remarkable optical properties, such as a high
photoluminescence quantum yield and the possibility to show optical gain in a
broad range of wavelengths. We have here simulated microcavities that embed
MaPBI3 and 2D hybrid organic inorganic perovskite semiconductors by sandwiching
such active layers between periodic, aperiodic and disordered photonic
structures. We have carefully considered the refractive index dispersion of all
the materials employed, such silicon dioxide, titanium dioxide and the
perovskite layers. Moreover, by employing a photochromatic polymer, namely the
diarylethene-based polyester pDTE, we have designed a microcavity with
light-induced tuning of the cavity modes is possible.
