Figure 3
From: Electronic structure of MAPbI3 and MAPbCl3: importance of band alignment
Valence band. Spectra of MAPbI3/Si (panel a), and MAPbCl3/PbI3/Au (b), and PbI2/Au and PbCl2/Au (c). For each panel the bottom continuous line is the GW calculated spectrum, while the top continuous line is the same spectrum convoluted with a gaussian function of 200 meV FWHM to take into account the finite experimental resolution, and with the addition of a Shirley background. Circles represent the experimental points. Valence bands in panel c are acquired with photon energy of 21.22 eV (He I line), while all the others valence bands are acquired with photon energy of 55 eV.
