Search results for "Optical Phonons"

showing 1 items of 1 documents

Transport properties of nitrogen doped p‐gallium selenide single crystals

1996

Nitrogen doped gallium selenide single crystals are studied through Hall effect and photoluminescence measurements in the temperature ranges from 150 to 700 K and from 30 to 45 K, respectively. The doping effect of nitrogen is established and room temperature resistivities as low as 20 Ω cm are measured. The temperature dependence of the hole concentration can be explained through a single acceptor‐single donor model, the acceptor ionization energy being 210 meV, with a very low compensation rate. The high quality of nitrogen doped GaSe single crystals is confirmed by photoluminescence spectra exhibiting only exciton related peaks. Two phonon scattering mechanisms must be considered in orde…

Electron mobilityOptical PhononsPhotoluminescenceMaterials scienceNitrogen AdditionsPhononExcitonGallium SelenidesHole MobilityGeneral Physics and AstronomyMonocrystalsCondensed Matter::Materials ScienceP−Type Conductors:FÍSICA [UNESCO]Condensed Matter::SuperconductivityDoped MaterialsHall EffectCondensed matter physicsPhonon scatteringScatteringDopingTemperature DependenceUNESCO::FÍSICAAcceptorDoped Materials ; Excitons ; Gallium Selenides ; Hall Effect ; Hole Mobility ; Monocrystals ; Nitrogen Additions ; Optical Phonons ; P−Type Conductors ; Temperature Dependence ; Transport ProcessesTransport ProcessesExcitons
researchProduct