Fig. 2: Characteristics of synthesized AuHNWs.

a Schematic illustration of Ag@AuNW and AuHNW. b TEM images and c EELS images of AuHNWs (scale bar, 1 μm and 100 nm). d The normalized absorbance of AgNW, Ag@AuNW, and AuHNW. e OM images of Ag@AuNW and AuHNW films (scale bar, 5 μm). f The average transmittance change of each nanowire with increasing coating times. g Electromechanical (n = 6 independent experiments) and h thermoelectrical properties (n = 3 independent experiments) of Ag@AuNW and AuHNW. i The relative resistance change of nanowires and gold thin film under H2O2 (30%) exposure. g, h Data are presented as a mean value ± standard deviation (SD).