摘要
Two-dimensional Jamus van der Waals(vdW)heterojunctions,referring to the junction containing at least one Janus material,are found to exhibit tuneable electronic structures,wide light adsorption spectra,controllable contact resistance,and sufficient redox potential due to the intrinsic polarization and unique interlayer coupling.These novel structures and properties are promising for the potential applications in eleetronics and energy conversion devices.To provide a comprehensive picture about the research progress and guide the following investigations,here we summarize their fundamental properties of different types of two-dimensional Janus vdW heterostruct ures including electronic struc-ture,interface contact and optical properties,and discuss the potential applications in electronics and energy conversion devices.The further challenges and possible research directions of the novel heterojunctions are discussed at the end of this review.
基金
supported by National Natural Science foundation of China(Grant No.11804006)
Henan Key Program of Technology Research and Development(No.182102310907)
Henan College Key Research Project(No.19A430006)
L.Ju gratefully acknowledges China scholarship council for its support(No.201908410036)
L.Kou gratefully acknowledges financial support by the ARC Discovery Project(No.DP190101607).
