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. 2021 May 28;6(23):15348–15360. doi: 10.1021/acsomega.1c01687

Figure 5.

Figure 5

Comparison of the closed-circuit voltages. The generated voltages under the load resistance of (a) RL = 10 MΩ, (b) RL = 100 MΩ, (c) RL = 400 MΩ, (d) RL = 1000 MΩ, (e) RL = 5000 MΩ, and (f) RL = 10,000 MΩ (the four loading conditions defined in Figure 3c are used in all the cases).