Applied Physics Letters · 1997 · 45 citations · 7 references
Natural SciencesMaterials EngineeringMaterials ScienceCondensed Matter PhysicsNanomaterialsNanotechnologyElectron DiffractionElectron MicroscopyMetal Oxide NanomaterialsNanomaterials SynthesisNanoparticle SynthesisTransmission Electron MicroscopyDiffraction PatternsDoped Metal Oxide NanomaterialsMetal Oxide Nanoparticle SynthesisMetal Oxide Nanoparticles SynthesisNanoparticle FormationNanoparticle NucleationNanoparticlesTransmission Electron Microscopy Of Grains
Nanoscale particles of Fe-doped SnO2 were intensively radiated in a high-energy electron beam observed in situ in a transmission electron microscope. Generation of small crystalline grains from agglomerated nanoparticles was observed. Electron diffraction patterns confirmed that the grains belonged to the orthorhombic phase of SnO2, which forms only under pressures higher than 140 kbar according to previous research. A possible process for the phase transition is discussed. The result suggests a novel method of producing orthorhombic SnO2 at low pressure.
7