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Table 1 Bandgap of BFO thin film (prepared by PLD) on different substrate

From: Optical properties of epitaxial BiFeO3 thin film grown on SrRuO3-buffered SrTiO3 substrate

Bandgap (eV) Substrate Film thickness (nm)
2.68 (this work) SRO-buffered STO 99.19
2.67 [8] DSO 100
2.80 [7] Nb-doped STO 106.5