International Journal of Academic and Applied Research (IJAAR)   Year: 2021 | Volume: 5 | Issue: 4 | Page No.: 34-41 Optical Parapets and Electrical Conductivity of Ni X Co1-X O2 Nanomaterials in Different Molar Yosra Mansour, Mubarak Dirar Abdallah, Adam Mohammed Adam Bakheet , PAbdalsakhi S. Mohammed, Ahmed Alfaki and Aldesogi Omer Hamed Abstract: Nickel Oxide doped by Cobalt Oxide (Ni X Co1-X O2) at different molar (0.1, 0.3, 0.5, 0.7and 0.9) Nanomaterial made by sol gel method. Optical properties were investigated for Ni X Co1-X O2 Nanomaterials that made by using UV-VS min 1240 spectrophotometer. The absorption of Ni X Co1-X O2 Nanomaterials samples are rapid increase at wavelengths 574nm corresponding photon energy 2.16 eV by molar increase , the value of absorption coefficient (a ) equal 0.416x103 cm-1 for NiCoO4m Molar0.9 m Molar sample in the visible region574 nm but for NiCoO40.1 m Molar sample equal 0.316x103 cm-1 at the same wavelength , this means that the transition must corresponding to un direct electronic transition, the value of (Eg) of NiCoO40.9 m Molar sample obtained was 1.7595 eV while for other sample NiCoO40.1 m Molar sample obtained was 1.7713 eV .The high magnitude of optical conductivity (11.47x1011 sec-1) confirms the presence of very high photo-response of Ni X Co1-X O2 Nanomaterials samples.