Production of Gas Phase Zinc Oxide Nanoclusters by Pulsed Laser Ablation

Igor Ozerov (1) , Alexander V. Bulgakov (2) , Dmitry K. Nelson (3) , Ricardo Castell (4) , Wladimir Marine (1)

1 CRMCN - Centre de recherche de la matière condensée et des nanosciences
2 IT - Institute of Thermophysics
3 A.F. Ioffe Physical-Technical Institute
4 USB - Universidad Simon Bolivar

We present experimental results on the photoluminescence (PL) of gas-suspended zinc oxide nanoclusters prepared during ablation of sintered ZnO targets by a pulsed ArF laser in the presence of oxygen ambient gas. The PL spectra in the UV spectral region correspond to the exciton recombination in the nanoclusters which are crystallized and cooled down to the temperature of the ambient gas in the ablation chamber. The time evolution of the spectra as well as their dependence on the ambient gas pressure are discussed.

Mots clés: Zinc oxide; Nanoclusters; Photoluminescence; Laser ablation

Domaines: Science des matériaux [cond-mat.mtrl-sci]; Agrégats Moléculaires et Atomiques [physics.atm-clus]

Igor Ozerov, Alexander V. Bulgakov, Dmitry K. Nelson, Ricardo Castell, Wladimir Marine. Production of Gas Phase Zinc Oxide Nanoclusters by Pulsed Laser Ablation. Applied Surface Science, 2005, 247, pp.1-7. ⟨10.1016/j.apsusc.2005.01.084⟩. ⟨hal-00001677⟩