Fig. 9From: Structural and Chemical Modifications Towards High-Performance of Triboelectric NanogeneratorsSurface micro-/nano-patterning techniques: a a schematic fabrication of the overlapped microneedles arrayed PDMS and the assembly of Al/PDMS MN-TENG (Reproduced with permission from Ref. [71]); b SEM image of the patterned PDMS before plasma treated and the topography of the pattern PDMS film treated by plasma (Reproduced with permission from Ref. [72]); c diagrams showing TF-TENG with embedded AgNWs in the PEDOT:PSS layer and the enlarged cross-sectional view of PEDOT:PSS/AgNW layer on a substrate (Reproduced with permission from Ref. [73])Back to article page