Growth of CdSe clusters by laser ablation and mass spectroscopy of ion flow

Laser evaporation of CdSe has been analyzed by ion flow mass spectrometry and ultrafine spectrum structure was found. It was proposed the different strength atom bonds and plasma effects were responsible for additional mass spectrum components. The CdSe cluster growth on different substrates was investigated and a clear evidence of substrate structure influence on a cluster distribution was found. The two step mechanism of cluster growth regulation was demonstrated.