The effects of organic and inorganic composition
ratio on the synthesis and optical properties of CH3-
NH3PbBr3 hybrid perovskite as nanostructure were studied.
The structural and excitonic properties, optical transmission
and photoluminescence properties were systematically
investigated based on the spectral shift. According to the
recent remarkable developments of lead halide perovskite
solar cells, investigation of the perovskite crystal structure
seems to be necessary. Based on our knowledge, the exact
impacts of controlling organic and inorganic composition’s
percentage, on the structural and optical properties of the
hybrids, are studied for the first time, in this paper. We
found some trends of choosing the organic ratio to improve
the optical performance and increase the exciton binding
energy. Moreover, with decreasing temperature, a redshift
(10 nm) occurred in the photoluminescence emission.
Furthermore, the photoluminescence spectra peak wavelengths
as a function of temperature are linear and have
negative slope.
