Table 1 The estimated strain-energy density of nanorods and nanosheets

From: Piezoelectric two-dimensional nanosheets/anionic layer heterojunction for efficient direct current power generation

 

ZnO Nanorods

ZnO Nanosheets

Total Area (m2)

5.02 × 10−13

3.83 × 10−14

Length (m)

2.00 × 10−6

3.00 × 10−6

Density (m3)

1.00 × 10−18

1.15 × 10−19

Strain-Energy Density (J/m3)

7.88 ± 2.19 × 106

8.20 ± 1.77 × 107

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