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RESEARCH PRODUCT
Oxidation of silicon nanoparticles produced by nanosecond laser ablation in liquids
Franco Mario GelardiRoberto BoscainoP. CamardaMarco CannasFabrizio MessinaLavinia VaccaroGianpiero BuscarinoSimonpietro Agnellosubject
Materials scienceLaser ablationSiliconmedicine.medical_treatmenttechnology industry and agricultureAnalytical chemistryOxideNanoparticlechemistry.chemical_elementequipment and suppliesAblationPhotochemistryAmorphous solidchemistry.chemical_compoundchemistrymedicineLuminescenceExcitationdescription
We investigated nanoparticles produced by laser ablation of silicon in water by the fundamental harmonic (1064 nm) of a ns pulsed Nd:YAG. The silicon oxidation is evidenced by IR absorption features characteristic of amorphous SiO2 (silica). This oxide is highly defective and manifests a luminescence activity under UV excitation: two emission bands at 2.7 eV and 4.4 eV are associated with the twofold coordinated silicon, =SiO••.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-01-01 | AIP Conference Proceedings |