Fig. 4: Evolution of nanoparticles coalescence process by TEM tracking and MD simulations. | Nature Communications

Fig. 4: Evolution of nanoparticles coalescence process by TEM tracking and MD simulations.

From: Identification of plasmon-driven nanoparticle-coalescence-dominated growth of gold nanoplates through nanopore sensing

Fig. 4

a TEM images of the tracking of nanoparticle aggregates conversion process. The first reaction is to put the TEM chip in the real conversion solution for 30 min with 500 nm light irradiation. The second reaction is to further put the TEM chip in a solution containing 4.84 ml ultrapure H2O, 0.50 ml PVP (K30, 5 mg/ml), 0.50 ml CH3OH, and 0.16 ml HAuCl4 (25 mM) for 15 min under 500 nm light irradiation. The scale bar indicates 20 nm. b TEM images of nanoparticle-nanoplate coalescence intermediate structure to nanoplate conversion process. The scale bar indicates 50 nm. c Snapshots of the coalescence trajectory of a larger Au nanoplate (gold) and penta twinned structure (pink).

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