Transparent and Efficient Wood-Based Triboelectric Nanogenerators for Energy Harvesting and Self-Powered Sensing.

After delignification treatment, the tensile strength of DW continued to show a decreasing trend, the cell walls of DW were severely damaged and the mechanical properties significantly declined after 90 min ( Figure S2 ), and the tensile strength of DW180 was only ~10 MPa, which can be attributed to the fact that too long a delignification time destroys the integrity of wood templates [ 39 ].

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