6533b7d7fe1ef96bd1268e54
RESEARCH PRODUCT
Enhancement of Electronic and Optical Properties of ZnO/Al2O3 Nanolaminate Coated Electrospun Nanofibers
Sebastien BalmeGrzegorz NowaczykViktoriia FedorenkoViktoriia FedorenkoArunas RamanaviciusRoman ViterMikhael BechelanyZigmas BaleviciusStefan JurgaSaulius TumenasMateusz KempińskiIgor Iatsunskyisubject
PhotoluminescenceMaterials scienceNanotechnology02 engineering and technology010402 general chemistry7. Clean energy01 natural sciencesWork functionNanomaterialsAtomic layer depositionNanolaminatesWork functionPhysical and Theoretical ChemistryelectrospinningPotential wellbusiness.industryBilayer[CHIM.MATE]Chemical Sciences/Material chemistry021001 nanoscience & nanotechnology0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsGeneral EnergyBand bendingQuantum dotatomic layer depositionOptoelectronicsphotoluminescence0210 nano-technologybusinessdescription
International audience; Nanolaminates are new class of promising nanomaterials with outstanding properties. Here we explored on the tuning of structural properties and the enhancement of electronic and optical properties of 1D PAN ZnO/Al2O3 nanolaminates designed by atomic layer deposition (ALD) and electrospinning. The influence of ZnO/Al2O3 bilayer thicknesses on the fundamental properties of 1D PAN ZnO/Al2O3 nanolaminates has been investigated. Due to the quantum confinement effect, the shift of XPS peaks to higher energies has been observed. Work function of Al2O3 was mostly independent of the bilayers number, whereas the ZnO work function decreased with an increase of the bilayer number. Photoluminescence of the 1D PAN ZnO/Al2O3 nanolaminates corresponded to emission bands in ZnO nanolayers. Due to quantum confinement and surface band bending, no excitonic peaks were observed. The defect emission band was affected by the band bending and defect concentration. The enhanced photoluminescence of the 1D PAN ZnO/Al2O3 nanolaminates allows applications in optical (bio)sensing field
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-02-26 |