非阻塞I/O
材料科学
结晶度
拉曼光谱
兴奋剂
退火(玻璃)
透射率
钴
折射率
电导率
电阻率和电导率
溅射
带隙
薄膜
分析化学(期刊)
晶格常数
光导率
衍射
光电子学
纳米技术
光学
复合材料
冶金
化学
物理化学
生物化学
物理
电气工程
色谱法
工程类
催化作用
作者
S. Elmassi,M. Beraich,Mohammed Bousseta,A. El Mouncharih,L. Amiri,S. Drissi,A. Abali,L. Nkhaili,A. Narjis,A. El Kissani,Ahmad Alsaad,A. Outzourhit
标识
DOI:10.1016/j.optmat.2023.114449
摘要
Nickel oxide material is considered an interesting class of p-transparent-conductive oxides for various fields of application. Improving the conductivity of these materials while retaining a high level of optical transmittance is considered a real challenge for their functional use. In the present work, a detailed study of the effect of cobalt incorporation on NiO thin films is reported. The films were deposited onto the glass substrates using radio frequency (RF) sputtering without annealing or post-annealing process. Various techniques of characterization were used. The X-ray diffraction (XRD) analyses show one clear peak of (200) plane, typical of the cubic structure of NiO, with an expansion of the lattice parameter and a decrease of the crystallinity as the substitution of Ni by Co increases. Raman spectroscopy confirms the result by the presence of the strong peak at 551 cm−1. The high transmittance and optical gap of NiO were retained and have not affected by Co-doping. The refractive index (n) calculated from various models shows a slight increase in n values with increasing Co/Ni ratio. The electrical measurements show an enhancement of the conductivity by Co-doping. The obtained results were compared and enriched with the theoretical calculation (DFT) using the GGA + U approximation.
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