Experimental achievement of 2D percolation and cluster-cluster aggregation models by cluster deposition

We show that cluster deposition, contrary to atomic or molecular deposition, makes it possible to experimentally approximate to several 2D theoretical models (percolation, cluster-cluster aggregation). Concerning percolation, molecular deposition seems to simulate bond correlated percolation whereas free-cluster deposition is close to geometrical site percolation. The low mobility of the clusters can explain these features. In different experimental conditions, cluster deposition allows to perform 2D cluster-cluster aggregation experiments.