Crystalline characteristics and superconducting properties of Bi2212 thin films by Pechini sol–gel method: effect of heating rate on the film growth

Superconducting properties and non-isothermal crystallization kinetics of a Bi2Sr2CaCu2O8+δ (Bi2212) superconductor prepared by the Pechini sol–gel method

“…where, F is the cooling rate. Thus, the curve of X t versus t and the curve of X t versus T can be obtained by combining formulas (1) and (2). Fig.…”

“…Bi-based (BSCCO) superconductors have become one of the most distinctive series of high-temperature superconductors in copper-based superconductors owing to their intrinsic characteristics such as a complex layered crystal structure, rare earth element-free composition, oxygen content in a nonstoichiometric ratio, disordered distribution of cations and intrinsic defects of stacking faults. [1][2][3] The general formula of the BSCCO superconductors can be expressed as Bi 2 Sr 2 Ca nÀ1 Cu n O 2n+4+d (n ¼ 1-3), i.e., Bi 2 Sr 2 CuO 6+d (Bi2201 phase, n ¼ 1), Bi 2 Sr 2 CaCu 2 O 8+d (Bi2212 phase, n ¼ 2) and Bi 2 Sr 2 Ca 2 Cu 3 O 10+d (Bi2223 phase, n ¼ 3). Compared with the Bi2201 phase, both the Bi2212 and Bi2223 phases have a higher superconducting transition temperature (T c ), which can realize a breakthrough in high-temperature superconductors without rare earth elements above the liquid nitrogen temperature.…”

Fabrication of Superconducting Nanowires Using the Template Method

“…Two approaches were employed, the sol-gel technique and the melting one. The solgel route is very useful to prepare ceramic materials in a controlled manner, and many experiments are described in the literature to grow HTSc superconducting materials in this way [39,[66][67][68][69][70]. The melting approach uses pre-prepared HTSc powder on top of the template, which is then heat-treated above the melting temperature.…”

Photoluminescence and thermoluminescence properties of pure and rare‐earth‐doped ZrO2 prepared by Pechini‐type sol–gel

“…The preparation of homogeneous precursors forms a polymeric resin on a molecular level thus segregation of particular metal ions is reduced, and compositional homogeneity is guaranteed [14–17]. Due to its cheapness, handiness and insensitivity to water existence, this method has been used rather extensively in the synthesis of ferroelectric [18], capacitor [19], superconducting [20], photocatalytic [21], optical [22] and electrolytic materials for solid oxide fuel cells [23].…”