Abstract
Organic–inorganic halides with confined carrier motion are vastly explored for use in light emitting devices. Its carrier relaxation dynamics was studied using photoluminescence and time resolved PL spectroscopy. Investigations on the structure and vibrational analysis confirms ImPbI3 structure. UV–Visible absorption studies show a maximum absorption at 270 nm at room temperature. PL spectra shows a broad emission at 592 nm under an excitation at 280 nm. The observed broad emission is redshifted from the absorption onset by 142 nm and the radiative relaxation of the self-trapped excitons accounts for the emission band. This work reiterates the potential of imidazolium lead iodide for optoelectronic applications.
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