Table 1 Power density as a function of temperature from three references measuring on triboelectric nanogenerators using Al and PTFE as contact materials. Su et al. and Lu et al. used the frequencies 0.05 Hz and 3 Hz respectively. For Wen et al. two experimental devices were used: one for low temperature regime 77 K–300 K and one for high temperatures 300 K–500 K. The low temperature device used the frequency 0.03 Hz and the high temperature device used the frequency 0.3 Hz. The average of the fitted characteristic temperatures is E/kB = 365 K. All fitted values are within the interval E/kB = 365 ± 96 K.

From: Schottky model for triboelectric temperature dependence

Reference

Temperature interval

Fitted E/kB

Power density v.s. temperature

Wen et al.12

77 K–500 K

374 K1

Decreasing trend but peak between 200 K and 300 K.

Su et al.13

77 K–320 K

451 K2

Decreasing with temperature, see Fig. 1A.

Lu et al.14

250 K–420 K

269 K3

Decreasing trend but plateau between 290 K and 370 K.

Average

 

365 K4

 
  1. Note 1: Model fitted to 11 out of 15 data points to calculate E/kB, see Fig. 1C. Four data points at peak excluded from fit.
  2. Note 2: Model fitted to all five data points, see Fig. 1A.
  3. Note 3: Model fitted to all 35 data points, see Fig. 1D.
  4. Note 4: All fitted values from Wen et al., Su et al. and Lu et al. are in the interval E/k B = 365 ± 96 K.
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