Optical and structural characterization of CdSe:Eu films at different volumes of europium concentration.

الموضوعات : Journal of Theoretical and Applied Physics

Diemiruaye Jeroh ¹ , Azubike Ekpunobi ² , Donald Okoli ³

1 - Department of Physics, Nnamdi Azikiwe University, Awka, Nigeria.
2 - Department of Physics, Nnamdi Azikiwe University, Awka, Nigeria.
3 - Department of Physics, Nnamdi Azikiwe University, Awka, Nigeria.

تاريخ الإرسال : 13 الأربعاء , شعبان, 1443 تاريخ التأكيد : 12 الجمعة , شوال, 1443 تاريخ الإصدار : 02 الأربعاء , ذو القعدة, 1443

الکلمات المفتاحية: Hexagonal, nanomaterials, Spray Pyrolysis, Electrostatic, Wurtzite,

ملخص المقالة :

Cadmium selenide films were prepared at different volumes of dopant (Europium) concentration by electrostatic-spray-pyrolysis technique. Optical results reveal low absorption and reflection with a corresponding high transmission in the visible region. Strong blue-shift is observed for the band gap energy in all cases of growth, indicating quantum confinement effect. Scanning electron studies reveal relatively smooth surface with small-sized grains on the surface. XRD confirms the crystalline nature of the films having hexagonal (wurtzite) structure with reduction in crystallinity of the film at increased volume of dopant concentration. EDX analysis confirmed the growth of CdSe:Eu film.