Enhanced electrical and magnetic properties of CuO/MgO nanocomposites

Green hydrothermally synthesized ultrathin Mg-doped CuO nanoflakes: a structural, electrical and dielectric study

“…The electrical study. The total conductivity s of a material is represented by the following relation: 63,64 s = s dc (T) + s ac (o, T)…”

“…The hopping of charge carriers in CuO can occur between two adjacent defect potential wells (inter-well hopping) and/or within one defect potential well (intra-well hopping). 63,65 The CBH model suggests the frequency and temperature dependence of frequency exponent (s). 70 Usually, the surfaces of NSs have amorphous features containing a large number of defects, which play a significant role in the electrical conduction process.…”

“…Pure and doped CuO NSs are rich in Mg interstitials and oxygen vacancies (V Cu and V O ) as defect centers and are responsible for electrical conduction. 63 In the CBH model, the frequency exponent s can be evaluated as follows: 73…”

Synthesis of glycine-mediated CuO–Fe2O3–MgO nanocomposites: Structural, optical, and antibacterial properties

“…Metal oxide nanocomposites (NCs) have attracted great attention in recent years due to their unique properties such as optical, electrical, mechanical, photocatalytic, thermal, and structural. [1][2][3] They could be of two, three or more oxides present in a nanometer scale and might be involved in many applications, including solar cell, battery materials, UV detectors, gas sensors, photovoltaic devices, and fuel cells. [4][5][6][7] By combining different metal oxides, various properties of individuals could be improved and a new track of research for biological, optoelectronics, thermal, and electrical applications could open up.…”

“…12,[15][16][17][18][19][20][21] MgO is nontoxic and inexpensive as well, demonstrating a wider optical bandgap of 7.3 eV, high surface reactivity, high adsorption capacity, and unique physicochemical properties. 1,2,[22][23][24] Fe 2 O 3 is a n-type semiconductor metal oxide with energy bandgap of 2.1 eV. It is chemically stable, naturally abundant, benefit several applications, and most importantly it is cheap and safe material.…”