The absorption peak for the nanoparticle system and the [AuI 4] - is at 350 nm. However, the absorbance values for the nanoparticle system increased in the visible light region.

• 其吸收峰仍位于 [AuI4]-的吸收峰 35 0nm处 ,但在可见光范围内的吸光度增大。