Interface energy band alignment at the all-transparent p-n heterojunction based on NiO and BaSnO3

Abstract

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Black phosphorene as a hole extraction layer boosting solar water splitting of oxygen evolution catalysts

“…As shown in Fig. 2f, The VB position is shifted upward from 2.48 eV for BiVO 4 to 2.23 eV for BP/BiVO 4 , implying that the positrons (holes) are the dominant carriers across the p / n junction under reverse bias 36 . According to the above experimental and theoretical results, Fig.…”

Probing surfaces and interfaces in complex oxide films via in situ X-ray photoelectron spectroscopy

“…However, given continued studies of the stability of dopants in BaSnO 3 [130], it also seems possible that atmospheric exposure led to the depletion of the surface carriers, which would explain the absence of observed carriers in the lab-source experiments. Carriers in identically doped BaSnO 3 were later observed in a lab-source experiment [131], lending further credence to this possibility. It is also possible that the HAXPES experiments [125] were successful due to the greater probe depth for hard X-rays, which overcomes the surface depletion.…”

Probing surfaces and interfaces in complex oxide films via in situ X-ray photoelectron spectroscopy

“…However, given continued studies of the stability of dopants in BaSnO3 124 , it also seems possible that atmospheric exposure led to depletion of the surface carriers, which would explain the absence of observed carriers in the lab-source experiments. Carriers in identically doped BaSnO3 were later observed in a lab-source experiment 125 , lending further credence to this possibility. It is also possible that the HAXPES experiments 119 were successful due to the greater probe depth for hard X-rays, which overcomes the surface depletion.…”