Fig. 1: Photoinduced conversion from Au nanospheres to Au nanoplates.
a Schematic illustration of the photoinduced conversion of Au nanospheres to nanoplates in the presence of iodine with irradiation at 500 ± 10 nm light. b Photograph of the initial Au nanospheres solution, and the reaction solution under continuous light (500 ± 10 nm) irradiation after adding 170 μl of I2 aqueous solution (0.5 mM). c TEM image of the Au nanospheres. The white dotted line as a guide highlights the boundaries of the twins (HRTEM images of more Au nanospheres are shown in Supplementary Fig. 1). d, e TEM and SEM images of final products obtained via irradiation of the reaction solution with light for 540 min (HRTEM image of Au nanoplate is displayed in Supplementary Fig. 2). f Time-dependent UV–Vis spectra of the corresponding solution in (b). g UV–Vis spectra of solution after 540 min reaction in dark condition, under 400 ± 10, 500 ± 10, 600 ± 10, and 700 ± 10 nm light excitation. h, i TEM images of the intermediate products after 60 and 300 min conversion reaction, respectively.
