摘要
Nowadays,perovskite materials become research hot-spots with the soar of the power conversion efficiency(PCE)for perovskite solar cells.Specifically,metal halide per-ovskites(MHPs),with the formula ABX_(3)(A=CH_(3)NH_(3)^(+)(MA^(+)),CH(NH_(2))_(2)^(+)(FA^(+)),Cs^(+),etc.;B=Pb^(2+)or Sn^(2+);and X=I^(-),Cl^(-)and/or Br^(-)),have become star materials in optoelectronics.MHPs present favorable optoelectronic properties,like high absorption coefficient in visible range,long carrier diffusion length,high defect tolerance,and superior optical gain in a wide wavelength range.These merits gift MHPs promising potential in optoelectronic application,including solar cells,light-emitting diodes,photodetectors and lasers.This article introduces the star perovskite materials in milestone works and highlights the best-performing materials in respective op-toelectronic application.
基金
the National Key Research and Development Program of China(2017YFA0206600)
the National Natural Science Foundation of China(51773045,21772030,51922032,21961160720)for financial support.
