Table 2 Efficiencies of CsPbI3 monolayer, CsPbBr3 monolayer, HS1, HS2, HS3 and HS4.

From: Two-dimensional CsPbI3/CsPbBr3 vertical heterostructure: a potential photovoltaic absorber

Structure

Efficiency (ƞ)

CsPbI3 monolayer

13.10%

CsPbBr3 monolayer

5.61%

HS1 (PbI2-CsBr)

12.15%

HS2 (CsI-CsBr)

18.00%

HS3 (CsI-PbBr2)

23.40%

HS4 (PbI2-PbBr2)

18.84%