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. 2021 May 31;12:3260. doi: 10.1038/s41467-021-23592-0

Fig. 5. Schematic of band structure and heterojunction.

Fig. 5

a, b Conduction band (EC), valence band (EV), Fermi level (EF), and trap energy level (ET) for Sb-rich and S-rich Sb2S3 films. c Schematic diagram of VOC derived from split of electron and hole quasi Fermi level (EFn and EFp).