تحضير ودراسة الخواص الضوئية لأغشية رقيقة من أكسيد الكوبالت باستعمال تقنية رذاذ الانحلال الحراري: تأثير تركيز المحاليل

Résumé: Cobalt oxide from transparent conductive oxides has important physical properties, making it the most commonly used material in many areas such as photoelectric electronics. In this work we studied the photosynthesis of cobalt oxide membranes by dissolving blocks of cobalt chloride as a source of cobalt ions in 20ml of distilled water plus 10ml of methanol where in this work we will rely on changing the concentration of the solution from (0.2-0.6 mol/l) and then depositing it on glass slides under 400c° using thermal decay spray technology. In this work, we will focus on studying the optical properties of cobalt membranes such as photomealic spectrum study, absorption, damping coefficient and refractive factors, energy gap based on UV and visible spectroscopy. The results showed that cobalt oxide membranes were highly transparent, ranging from 76.42% to 81.24% in the visible spectrum area (550nm), while the value of the energy gap changed from 3.88ev to 3.911ev, depending on the change in the switches. From (0.2-0.6 mol/l), the results also showed that the value of the absorption factor decreases by increasing the wavelength in the field (300-400 nm) due to increased stratified permeability within this range of wavelength while we suggest that there is stability within the visible field, as The results showed acceptable values for both refractive and idle factors

Publié dans la revue: