Triboelectric nanogenerator problem

01 January 1970 0 9K Report

I made a TENG by PVDF and nylon 66, both have Al electrode and connect to the oscilloscope by Cu tapes. When I test the Voltage, it only shows 2 or 3 V. What did I do wrong? Can you give me some advice how to improve them to about 100 V?

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