6533b82afe1ef96bd128b700
RESEARCH PRODUCT
MOCVD growth of porous cerium oxide thin films on silicon substrate
Bruno DomenichiniSylvie BourgeoisP. SimonL. AvrilN. ZanfoniLuc Imhoffsubject
Cerium oxideMaterials scienceSiliconInorganic chemistrychemistry.chemical_elementSurfaces and InterfacesGeneral ChemistryChemical vapor depositionSubstrate (electronics)Condensed Matter PhysicsSurfaces Coatings and FilmsCeriumChemical statechemistryMaterials ChemistryThin filmLayer (electronics)description
Abstract Porous cerium oxide thin films were grown by pulsed direct liquid injection metal organic chemical vapor deposition (DLI-MOCVD) on silicon substrate, using cerium tetrakis (1-methoxy-2-methyl-2-propanolate) dissolved in cyclohexane as precursor as well as oxygen as oxidant agent. The chemical and morphological characteristics of the films were investigated by XPS, SEM and TEM. The influence of the growth conditions on the morphological features of the thin films and the cerium chemical states are reported and discussed. The decrease of the oxygen and/or alkoxide flow rate induces the decrease of both the film thickness and the porosity of the layer. Moreover, the growth of silicate at the interface between the silicon substrate and the grown film is evidenced.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-10-01 | Surface and Coatings Technology |