Figure 3
Time-dependent temperature changes of the Au 111 lattice in the single-layered bare gold [(a) open triangles] and SAM-coated gold nanocrystals [(b) open circles] after femtosecond laser excitation. Dotted lines show the characteristic time decay of cooling dynamics in the thermalized gold nanocrystals calculated using experimental data with equations (2) and (3). (Insert) Time-dependence of peak width, ΔQ, of single-layered bare gold nanocrystals. |