Author(s)

Jin Hao ^1,2, Fengwu Du ², Qing Lin ^1,2, Pan Dong ², Yun He ², Fang Yang ¹

Affiliation(s)

¹ College of Biomedical Information and Engineering, Hainan Medical University, Haikou, 571199, China
² College of Physics and Technology, Guangxi Normal University, Guilin, 541004, China

Corresponding Author

Pan Dong

ABSTRACT

A perovskite solar cell is a solar cell using a perovskite type organic metal halide semiconductor as a light absorbing material.The perovskite solar cell precursors La_0.7Pb_0.3Mn_1-xCo_xO₃ was successfully prepared by the Sol-gel method. The experimental conditions were calcined at 950℃ for 10 hours. TG-DSC shows that the chemical reaction led to a slow endothermic process, when the temperature was above 300℃, and the formation of the lattice. The X-ray diffraction results confirmed all samples are perovskite rhombohedron (R-3C) structure, and no impurity is generated, the average grain size of the sample are 38.0nm to101.4nm. The SEM results show that the particle boundary is clear and there is little agglomeration between particles, the particle size increases and the agglomeration becomes serious with the increase of Co doping content. The FT-IR images show that the absorption peak in the low-frequency wavenumber phase of the main band at around 439 cm^-1 and 608 cm^-1. The ferromagnetism of samples La_0.7Pb_0.3Mn_1-xCo_xO₃ (x=0~1.0) gradually weakens with the increase of Co doping ratio, the specific saturation magnetization of the samples reduced from 47.69 emu/g to 0.62 emu/g, while the coercivity increased from 36.79 Oe to 96.68 Oe.

KEYWORDS

Perovskite materials, LaMnO3, Sol-gel, structure, magnetic

CITE THIS PAPER

Jin Hao, Fengwu Du, Qing Lin, Pan Dong, Yun He, Fang Yang, Micro Structure and Magnetic Behavior of La_0.7Pb_0.3Mn_1-xCo_xO₃ Perovskite Nanomaterials. Modern Physical Chemistry Research (2023) Vol. 3: 9-17. DOI: http://dx.doi.org/10.23977/mpcr.2023.030102.

REFERENCES

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