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Oxide-based Visible Light Photoelectrochemical Water Splitting: Nanodimensional and Heterointerface Design of Photocatalysts
thesis
posted on 2020-06-03, 23:57 authored by KOK HONG TANSolar-driven photoelectrochemical (PEC) water splitting has drawn great interest due to its significant role in environmentally clean technology. Most studied oxide semiconductors with hybrid structure have been envisaged to improve photoactivity performance. Unfortunately, they are inhibited by several factors, such as (i) large energy band gap which only possesses photoactivity within the UV region, (ii) competitive redox reaction as the result of polycrystalline orientation, and (iii) charge separation efficiency of photoexcited electron-hole pairs. To overcome the above-mentioned factors, materials with different functionalities into nanostructures and heterointerfaces were fabricated to engineer the interface properties, which affect the contact energy gap and the concentration of defects of materials.
History
Campus location
MalaysiaPrincipal supervisor
Chang Wei SeaAdditional supervisor 1
Chai Siang PiaoAdditional supervisor 2
Burhanuddin Yeopp MajlisAdditional supervisor 3
Dee Chang FuYear of Award
2019Department, School or Centre
Faculty of EngineeringCourse
Doctor of PhilosophyDegree Type
DOCTORATEFaculty
Faculty of EngineeringUsage metrics
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Keywords
SemiconductorGold NanoparticlesZinc Oxide NanorodsNd-doped BiFeO3Titanium DioxideBand Gap EngineeringHeterojunction Band OffsetsHeterointerfaceFermi LevelSchottky Barrier HeightCharge TransferVisible LightLight Absorption AbilityLight TrappingMultiphoton AbsorptionPhotoelectrochemicalDensity Functional TheoryApplied PhysicsFunctional MaterialsRenewable Power and Energy Systems Engineering (excl. Solar Cells)
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