Fig. 4: UPS and band alignment of the solar cell.
From: Passivation of InP solar cells using large area hexagonal-BN layers
a Comparative UPS spectra of i-InP with and without hBN monolayer. b Magnified valence band contribution of the UPS spectra of i-InP with and without hBN layer. c Band diagram drawn using UPS data to show the band bending at the interface of hBN/i-InP.
