Fig. 1: Schematic of the synthesis process of NDCs encapsulating high-pressure solids using multilayer thin film deposition.
From: Preserving high-pressure solids via freestanding thin-film engineering
a Step 1: the C-AuNPs-C sandwiched film produced by magnetron sputtering contains dispersed Au nanoparticles. b Step 2: the multilayer carbon film is converted to nanocrystalline diamonds by in situ high-pressure laser heating in a DAC. c Step 3: the high-pressure Au nanoparticles are preserved in NDCs, which can be removed from the DAC and characterized by high-resolution TEM and various other probes. The diamond anvil cartoon is reproduced from ref. 12 with permission from Springer Nature.
