摘要
Lead halide perovskites are at the forefront of optoelectronic materials due to their high absorption coefficient,tunable bandgap,long carrier diffusion length,and small exciton binding energy[1−3],yielding high-performance optoelectronic devices.
基金
B.Yang thanks National Natural Science Foundation of China(62004066)
Hunan Provincial Science and Technology Department(2019GK2101)for financial support.L.Ding thanks the National Key Research and Development Program of China(2017YFA0206600)
the National Natural Science Foundation of China(51773045,21772030,51922032,21961160720)for financial support.
