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. 2020 Apr 6;12:87. doi: 10.1007/s40820-020-00425-1

Fig. 1.

Fig. 1

a XPS survey spectra of as-prepared and in situ redissolved CsPbIBr2 films annealed at 100 °C and 280 °C, b corresponding core-level N 1s XPS spectra, c TGA heating curve of PEAI powder expressed as weight% as a function of applied temperature, d DSC curve of PEAI powder