Introduction to oxygen-deficient solar power generation


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About Introduction to oxygen-deficient solar power generation

About Introduction to oxygen-deficient solar power generation

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6 FAQs about [Introduction to oxygen-deficient solar power generation]

How efficient is photoelectron emigration in oxygen deficient Wo 3 / Zn heterostructure?

The photocurrent response and EIS results also demonstrate more efficient photoelectron emigration in oxygen deficient-WO 3–x /Zn 0.3 Cd 0.7 S heterostructure compared to oxygen-vacancy-free WO 3 /Zn 0.3 Cd 0.7 S sample. The fast electron transfer efficiently captures the photo induced holes in the valence band (VB) of Zn 0.3 Cd 0.7 S.

Does oxygen deficiency affect photo-generated charge carrier recombination?

For our oxygen-deficient WO 3–x /Zn 0.3 Cd 0.7 S Z-scheme system, the photo-generated holes tend to be present in the VB WO 3–x, while the electrons in the conduction band of WO 3–x combine with the holes of Zn 0.3 Cd 0.7 S through the interface contact. As a result, the photo-generated charge carrier recombination can be significantly decreased.

How are oxygen defects created?

Besides gaseous hydrogen reduction, oxygen defects were also created via solid-state reduction of (Sr 1 − x Ba x)FeO 2 perovskite using solid reagents that can thermally release hydrogen (CaH 2, NaH) and wet-chemical reduction with H 2 O 2 aqueous solution on La 0.8 Sr 0.2 CoO 3 − δ (LSC) .

How does oxygen deficiency affect ion transport?

Synchronously, the introduction of oxygen deficiencies triggers the adscititious electric forces and facilitates the boosted electronic conductivity and accelerated ion transport. These strategies enable the multiscale design of oxygen-deficient MOF derivatives by compositional, morphological, and electronic/atomic optimization.

Can oxygen-deficient metal oxides be used in photocatalysis?

This review discusses recent advances in synthetic approaches of oxygen-deficient metal oxides and their applications in photocatalysis, electrocatalysis, and energy storage devices. The perspectives of oxygen-deficient metal oxides for increased energy demand and environmental sustainability are also examined.

Does low formation energy cause oxygen vacancies in perovskite oxides?

Typically, low formation energy results in a higher degree of oxygen defects. Sr and Ca are the most favorable and commonly used alkaline-earth metals to create oxygen vacancies in ABO 3 -type perovskite oxides [3, 70].

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