fig2
![Improved thermoelectric performance in n-type flexible Bi<sub>2</sub>Se<sub>3+x</sub>/PVDF composite films](https://image.oaes.cc/8a8d92a9-1916-49c0-9af3-7acfeb688ce8/4156.fig.2.jpg)
Figure 2. (A, B) XRD patterns of the Bi2Se3+x/PVDF composite films; (C) XPS spectra fitting curve for Bi2Se3.2 powder; and (D) Se/Bi molar ratio of ICP-MS measurement for Bi2Se3+x (x = 0, 0.2, 0.3, 0.4) powder.
Figure 2. (A, B) XRD patterns of the Bi2Se3+x/PVDF composite films; (C) XPS spectra fitting curve for Bi2Se3.2 powder; and (D) Se/Bi molar ratio of ICP-MS measurement for Bi2Se3+x (x = 0, 0.2, 0.3, 0.4) powder.
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