Correlation between structural, magnetic and gas sensor properties of La0.885Pb0.005Ca0.11

La0.8Pb0.1Ca0.1Fe1−xCoxO3 thin films as ozone-sensitive layers

“…Moreover, the responses of 𝐿𝑎 0.8 𝑃𝑏 0.1 𝐶𝑎 0.1 𝐹𝑒 1−𝑥 𝐶𝑜 𝑥 𝑂 3 (0.00 ≤ 𝑥 ≤ 0.20) sensors found in this study were higher than the response of 𝐿𝑎 0.885 𝑃𝑏 0.005 𝐶𝑎 0.11 𝐹𝑒 1−𝑥 𝐶𝑜 𝑥 𝑂 2.95 (0.00 ≤ 𝑥 ≤ 0.15) sensors found in our study [18,19].…”

“…Moreover, the presence of other peaks characteristic of 𝐹𝑒 3 𝑂 4 secondary phase has been identified in this study using "𝑋0 Pert High Score Plus" program. This phase was found to crystallize in the orthorhombic structure with 𝑃𝑏𝑐𝑚 space group [9,18]. The refinement parameters are gathered in Table 1.…”

“…). When 𝐿𝑎 3+ is substituted by 𝑃𝑏 2+ , the ionization reaction of this from 270 °𝐶 for 𝑥 = 0.00 to 250 °𝐶 for 𝑥 = 0.05 in the presence of 𝑁𝐻 3 -gas[18]. In a related study H.Saoudi et al have reported that introducing Cobalt instead of Iron in 𝐿𝑎 0.8 𝑃𝑏 0.1 𝐶𝑎 0.1 𝐹𝑒 1−𝑥 𝐶𝑜 𝑥 𝑂…”

Influence of film-thickness on the ozone detection of perovskite La0.8Pb0.1Ca0.1Fe1−xCoxO3 based sensors

“…In our previous published work related to this framework, we have demonstrated that introducing cobalt instead of Iron in 𝐿𝐿𝐿𝐿 0.885 𝑃𝑃𝑝𝑝 0.005 𝐶𝐶𝐿𝐿 0.11 𝐹𝐹𝐹𝐹 1−𝑥𝑥 𝐶𝐶𝐶𝐶 𝑥𝑥 𝑆𝑆 2.95 (𝑥𝑥 = 0.00, 0.05, 0.10 𝐿𝐿𝑍𝑍𝑎𝑎 0.15) compounds leads to the decrease of the operating temperature from 270 °𝐶𝐶 to 250 °𝐶𝐶 when Co-content increase from 0 % to 5 % in presence of the 𝑁𝑁𝑊𝑊 3 reducing gas[29]. Moreover, the responses of 𝐿𝐿𝐿𝐿 0.8 𝑃𝑃𝑝𝑝 0.1 𝐶𝐶𝐿𝐿 0.1 𝐹𝐹𝐹𝐹 1−𝑥𝑥 𝐶𝐶𝐶𝐶 𝑥𝑥 𝑆𝑆 3 (0.00 ≤ 𝑥𝑥 ≤ 0.20) sensors found in this study were higher than those of 𝐿𝐿𝐿𝐿 0.885 𝑃𝑃𝑝𝑝 0.005 𝐶𝐶𝐿𝐿 0.11 𝐹𝐹𝐹𝐹 1−𝑥𝑥 𝐶𝐶𝐶𝐶 𝑥𝑥 𝑆𝑆 2.95 (0.00 ≤ 𝑥𝑥 ≤ 0.15) sensors found in our previously3 study [29].…”

“…However, LaFeO 3 is characterized by a high resistance [27], which is a disadvantage in the field of gas sensors. For this reason, it is necessary to replace the lanthanum in LaFeO 3 with lower-valence cations, such as Sr, Ca and Pb [28][29][30]. The gas-sensing properties of La 1−𝑥𝑥 Ca 𝑥𝑥 FeO 3 and La 1−𝑥𝑥 Pb 𝑥𝑥 FeO 3 have been studied respectively by L.B.…”