Spindle-like TiO₂crystallites

Amorphous particle covered with TiO₂ crystallites

TiO₂ / SiO₂ sample
(negative contrast)

Air-dried TiO₂ / SiO₂ suspension on carbon coated copper grid

Electron Specimen Interaction

Electron Specimen Interaction

Air-dried TiO₂ / SiO₂ suspension on carbon coated copper grid

A: EELS from an amorphous area (silicon rich area)
(Spectrum is background stripped, reference area for calculation was chosen between 450eV and 530eV, beyond the oxygen K-ionisation edge)

B: EELS from a crystalline area (titanium rich area)
(Spectrum is background stripped, reference area for calculation was chosen between 400eV and 470eV, beyond the titanium L_2,3 ionisation edge)

EELS from a titanium rich area
(Spectrum is acquired by a CCD camera and imaged via densitometry)

TiO₂ / SiO₂ sample (Energyloss: DE = 0eV)

DE = 415eV (beyond Ti L_2,3 ionisation edge)

DE = 466eV (above Ti L_2,3 ionisation edge)

Titanium distribution (green)

(Calculated with two background images at DE = 415eV and
DE = 435eV energyloss)