Mili-electron volt energy resolution

Cathodoluminescence spectrum of Europium-doped yttrium oxide particle measured with Vulcan system.  Europium ion d-to-f interband transitions produce narrow emission lines; excellent energy resolution of Vulcan™ system resolves two spectral peaks with peak-to-peak separation of only 1.6 meV.  

Methods

Acquired using JEOL 2100F
STEM mode
200 kV
Room temperature.