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. 2017 Aug 17;7:8670. doi: 10.1038/s41598-017-09261-7

Figure 4.

Figure 4

Evolution of ultrafast transient infrared absorption signal as Ag NPs connect to TiO2 with a molecular linker. Temporal evolution of the kinetic traces extracted at 2081 cm−1 from transient absorption infrared spectroscopy measurements upon excitation at 405 nm for the (a) Bts-Ag NP–linker–TiO2 (linked system), and (b) Bts-Ag NP–TiO2 (unlinked system). Inserts show the infrared absorption intensity over time extracted at 1.5 ps.