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Mol% of europium doped strontium aluminate (SrAl 2 O 4 :Eu 2+) coatings on silicon substrates were prepared by electrostatic spray deposition method using a salted sol-gel derived solution as a starting material. Asdeposited films at 100 • C for 5 h were heated at 1100 • C for 2 h under a reducing ambient atmosphere of 95%N 2 + 5%H 2. Nanocrystalline SrAl 2 O 4 film was confirmed by surface morphological and crystallographic analyses. Monitored at 520 nm, the excitation spectrum showed a broad band from 300 ∼ 500 nm and the emission intensity showed a maximum yellow peak intensity at 512 nm with a broad band from 460 ∼ 610 nm.

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