Huixin Zhu, Mingzhe Leng^*, Guofeng Jin^*, Heyang Miao

FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.7, pp. 1907-1923, 2023, DOI:10.32604/fdmp.2023.025416

Abstract When aluminum alloys are coupled with dissimilar materials, they often act as corrosion anodes and are suscepted to accelerated corrosion. Therefore, deepening our knowledge of such corrosion phenomena, related mechanisms, and elaborating new prediction model is of great theoretical and practical significance. In this paper, such mechanisms are explained from both macroscopic and microscopic points of view by considering several aspects such as the second phase particle type, grain size, and environmental ions. More specifically, different perspectives on such a problem are elaborated, which take into account: the properties of the coupling pair materials, geometrical characteristics, environmental media characteristics, the… More >

Wei Hu^1,2, Fengjuan Si³, Hongtao Xue¹, Wensheng Li¹, Jun Hu⁴, Fuling Tang^1,*

Journal of Renewable Materials, Vol.11, No.3, pp. 1293-1301, 2023, DOI:10.32604/jrm.2022.023095

Abstract This work investigates the effect of passivation on the electronic properties of inorganic perovskite CsPbI₃ materials by using first-principles calculations with density functional theory (DFT). The passivation effect after the addition of Phenylethylamine (PEA⁺ ) molecule to CsPbI₃ (110) surface is studied. The results of density of states (DOS) calculations show that the CsPbI₃ (110) surface model with I atom terminated reveals new electronic DOS peaks (surface states) near the Fermi level. These surface states are mainly due to the contribution of I-5p orbital and are harmful to the CsPbI₃-based solar cells because they reduce the photoelectric conversion efficiency. The… More > Graphic Abstract