Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorQiao, Weien_US
dc.contributor.authorTao, Hua Bingen_US
dc.contributor.authorLiu, Binen_US
dc.contributor.authorChen, Jiazangen_US
dc.identifier.citationQiao, W., Tao, H. B., Liu, B. & Chen, J. (2019). Nanostructuring confinement for controllable interfacial charge transfer. Small, 15(29), 1804391-.
dc.description.abstractCarbon nanostructures supported semiconductors are common in photocatalytic and photoelectrochemical applications, as it is expected that the nanoconductors can improve the spatial separation and transport of photogenerated charge carriers. Transfer of charge carriers through the carbon-semiconductor interface is the key electronic process, which determines the role of charge separation channels, and is sensitively influenced by band structures of the semiconductor near the contacts. Usually, this electronic process suffers from excessive energy dissipation by thermionic emission, which will undesirably prevent the interfacial charge transfer and eventually aggravate the recombination of photogenerated charge carriers. Unfortunately, this critical issue has hardly been consciously considered. Here, ultrathin dopant-free tunneling interlayers coated on the surface of graphene and sandwiched between the carbon sheets and the semiconductor nanostructures are adopted as a model system to demonstrate energy saving for the interfacial charge transfer. The nanostructuring confinement of band bending within the ultrathin interlayers in contact with the graphene sheets effectively narrows the width of the potential barriers, which enables tunneling of a substantial number of photogenerated electrons to the co-catalysts without unduly consuming energy. Besides, the dopant-free tunneling interlayers simultaneously block the transferred electrons in the sandwiched graphene sheets from leakage.en_US
dc.rights© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved.en_US
dc.subjectEngineering::Chemical engineeringen_US
dc.titleNanostructuring confinement for controllable interfacial charge transferen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.subject.keywordsChange Transferen_US
dc.subject.keywordsCharge Transporten_US
dc.description.acknowledgementThe authors acknowledge National Natural Science Foundation of China (Nos.: 21773285 and 91545116), State Key Laboratory of Coal Conversion (Nos.: 2018BWZ004 and J17-18-913-1), CAS Pioneer “Hundred Talents Program”, Start-Up Grant of Institute of Coal Chemistry and Taishan scholar advantage and characteristic discipline team of Eco chemical process and technology for financial support.en_US
item.fulltextNo Fulltext-
Appears in Collections:SCBE Journal Articles

Page view(s)

Updated on Jan 23, 2022

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.