Chemicals including lead
bromide (PbBr2, ≥98%), formamidinium bromide (FABr,
≥98%), rubidium bromide (RbBr, 99.6%), potassium bromide (KBr,
≥99%), oleic acid (technical grade, 90%), oleylamine (technical
grade, 70%), dimethylformamide (DMF, 99.8%), chloroform (≥99%),
toluene (99.8%), hexane (≥95%), and acetonitrile (99.8%) were
purchased from Sigma-Aldrich. All of the chemicals were directly used
as received without further purification.
bromide (PbBr2, ≥98%), formamidinium bromide (FABr,
≥98%), rubidium bromide (RbBr, 99.6%), potassium bromide (KBr,
≥99%), oleic acid (technical grade, 90%), oleylamine (technical
grade, 70%), dimethylformamide (DMF, 99.8%), chloroform (≥99%),
toluene (99.8%), hexane (≥95%), and acetonitrile (99.8%) were
purchased from Sigma-Aldrich. All of the chemicals were directly used
as received without further purification.
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