Optoelectronic properties and interfacial interactions of two-dimensional Cs₂PbX₄–MSe₂ (M = Mo, W) heterostructures

Abstract

The PCE of Cs2PbX4–WSe2 heterostructures is larger than the PCE of Cs2PbX4–MoSe2 heterostructures. Cs2PbI4–WSe2 heterostructure has the largest PCE (18%) among Cs2PbX4–MSe2 heterostructures and has great potential application in solar cells.

Band inversion and switchable magnetic properties of two-dimensional RuClF/WSe2 van der Waals heterostructures

“…19 For example, NiO/ ZnO heterostructure prepared through experiments exhibits excellent photocatalytic properties with an improved separation of photogenerated electrons and holes; 20 Cs 2 PbX 4 /MSe 2 (X = Cl, Br, I; M = Mo, W) heterostructure maintains the great humidity resistance and stability of inorganic chalcogenides, which exhibits excellent photovoltaic properties and great potential for application in solar cells. 21 In addition, heterostructures formed by 2D magnetic materials have been theoretically proven to exhibit excellent magnetic properties, such as valley polarization, band inversion and other electronic phenomena. [22][23][24][25] Therefore, it is necessary to explore more heterostructures and discover their properties.…”