Optically induced coherent phonons in bismuth oxyiodide (BiOI) nanoplatelets

Abstract

Synthesis:The reagents Bismuth (III) nitrate pentahydrate (Bi(NO3)3 • 5 H2O), D-mannitol (C6H14O6), Polyvinylpyrrodine (PVP K-25, (C6H9NO)n), Potassium chloride, -bromide, and -iodide (KX, X = Cl, Br, I), methanol (CH3OH), and ethanol (C2H5OH) were ordered from Merck and used without further purification. BiOI nanoplatelets were synthesized in a modified approach based on the protocol reported