Figure 4.
Characteristics of DMAI, Syn‐PbI2, Pri‐PbI2, Syn‐CsPbI3, and Pri‐CsPbI3 powders. a) XPS spectra of N 1s; b) TGA curves; c) FTIR spectra; and d) 1H NMR spectra (the powders for NMR measurement were dissolved in DMSO‐d6).
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