6533b86ffe1ef96bd12cdb1c
RESEARCH PRODUCT
Low vacuum photo electron emitting thin films
Stefan KrischokJürgen SchubertG. SchoenhenseK. MedyanykTheodor DollC. ZimmerPierre Lorenzsubject
Analytical chemistryGallium nitrideSurfaces and InterfacesElectronLanthanum hexaborideNitrideCondensed Matter PhysicsMass spectrometryIon sourceSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialschemistry.chemical_compoundchemistryIonizationMaterials ChemistryElectrical and Electronic EngineeringThin filmdescription
Impact ionisation is a standard procedure to ionise gaseous or vaporisable substances in organic mass spectrometry. In this work, a "softer" ionisation is introduced which seems to be an alternative ion source for reducing collision between substance molecules and the hot internal walls of the box. Through collision mainly found in impact ionisation sources, fragments are built especially from thermally sensitive substances falsifying the spectra. We present here photoelectron emitting materials for the soft ionisation using semiconducting compounds, galliumn nitride (GaN), and a representative of the borides, lanthanum hexaboride (LaB 6 ). They are evaluated by photoelectron spectroscopic studies.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-03-01 | physica status solidi (a) |