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Niobium-Doped (001)-Dominated Anatase TiO2 Nanosheets as Photoelectrode for Efficient Dye-Sensitized Solar Cells
Jiang, Lei1; Sun, Lei1; Yang, Dong2; Zhang, Jian2; Li, Ya-Juan1; Zou, Kun3; Deng, Wei-Qiao1
KeywordNiobium-doped Titania Nanosheets Dye-sensitized Solar Cells Work Functions Density Functional Theory First-principles
Source PublicationACS APPLIED MATERIALS & INTERFACES
2017-03-22
ISSN1944-8244
DOI10.1021/acsami.6b14147
Volume9Issue:11Pages:9576-9583
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS KeywordEXPOSED 001 FACETS ; CONVERSION EFFICIENCY ; ELECTRONIC-STRUCTURE ; SINGLE-CRYSTALS ; PHOTOREDUCTION ; FABRICATION ; PERCENTAGE ; SURFACES ; METALS ; LIQUID
AbstractTiO2 nanocrystals with different reactive facets have attracted extensive interest since they were first synthesized. The anatase TiO2 nanocrystals with (001) or (100) dominate facets were considered to be excellent electrode materials to enhance the cell performance of dye-sensitized solar cells. However, which reactive facet presents the best surface for benefiting photovoltaic effect is still unknown. We report a systematic study of various anatase TiO2 surfaces interacting with N719 dye by means of density functional theory calculations in combination with microscopic techniques. The (001) surface interacting with N719 would have the lowest work function, leading to the best photovoltaic performances. To further increase the efficiency, Nb dopant was incorporated into the anatase TiO2 nanocrystals. Based on the theoretical prediction, we proposed and demonstrated novel Nb-doped (001)-dominated anatase TiO2 nanosheets as photoelectrode in a dye-sensitized solar cell to further enhance the open-circuit voltage. And a power conversion efficiency of 10% was achieved, which was 22% higher than that of the undoped device (P25 as an electrode).
Language英语
WOS IDWOS:000397478100039
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169341
Collection中国科学院大连化学物理研究所
Corresponding AuthorDeng, Wei-Qiao
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Three Gorges Univ, Coll Chem & Life Sci, Hubei Key Lab Nat Prod Res & Dev, Yichang 443002, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Lei,Sun, Lei,Yang, Dong,et al. Niobium-Doped (001)-Dominated Anatase TiO2 Nanosheets as Photoelectrode for Efficient Dye-Sensitized Solar Cells[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(11):9576-9583.
APA Jiang, Lei.,Sun, Lei.,Yang, Dong.,Zhang, Jian.,Li, Ya-Juan.,...&Deng, Wei-Qiao.(2017).Niobium-Doped (001)-Dominated Anatase TiO2 Nanosheets as Photoelectrode for Efficient Dye-Sensitized Solar Cells.ACS APPLIED MATERIALS & INTERFACES,9(11),9576-9583.
MLA Jiang, Lei,et al."Niobium-Doped (001)-Dominated Anatase TiO2 Nanosheets as Photoelectrode for Efficient Dye-Sensitized Solar Cells".ACS APPLIED MATERIALS & INTERFACES 9.11(2017):9576-9583.
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