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. 2021 Feb 9;7:15. doi: 10.1038/s41378-021-00239-0

Fig. 3. Charge decay results fitted by a second-order linear model.

Fig. 3

a Fitting result of the charge decay in electrets exposed to high temperature (120 °C), b Fitting result of the charge decay in electrets exposed to high humidity (99% RH). The fitting parameters of the charge decay process at high temperature (120 °C) and high humidity (99% RH) are listed in Tables 2 and 3, respectively