IMR OpenIR
Lattice distortion induced internal electric field in TiO2 photoelectrode for efficient charge separation and transfer
Hu, Yuxiang1,2; Pan, Yuanyuan3; Wang, Zhiliang1,2; Lin, Tongen1,2; Gao, Yuying4; Luo, Bin1,2; Hu, Han3; Fan, Fengtao4; Liu, Gang5,6; Wang, Lianzhou1,2
Corresponding AuthorWang, Zhiliang(zhiliang.wang@uq.edu.au) ; Liu, Gang(gangliu@imr.ac.cn) ; Wang, Lianzhou(l.wang@uq.edu.au)
2020-05-01
Source PublicationNATURE COMMUNICATIONS
ISSN2041-1723
Volume11Issue:1Pages:10
AbstractProviding sufficient driving force for charge separation and transfer (CST) is a critical issue in photoelectrochemical (PEC) energy conversion. Normally, the driving force is derived mainly from band bending at the photoelectrode/electrolyte interface but negligible in the bulk. To boost the bulky driving force, we report a rational strategy to create effective electric field via controllable lattice distortion in the bulk of a semiconductor film. This concept is verified by the lithiation of a classic TiO2 (Li-TiO2) photoelectrode, which leads to significant distortion of the TiO6 unit cells in the bulk with well-aligned dipole moment. A remarkable internal built-in electric field of 2.1x10(2)Vm(-1) throughout the Li-TiO2 film is created to provide strong driving force for bulky CST. The photoelectrode demonstrates an over 750% improvement of photocurrent density and 100mV negative shift of onset potential upon the lithiation compared to that of pristine TiO2 film. The driving force for charge transfer in photoelectrochemical systems is typically derived from band bending at a surface-electrolyte interface. In this work, battery-type lithiation of TiO2 generates a built-in electric field in the bulk material, giving a 750% enhancement in photocurrent density.
Funding OrganizationAustralian Research Council ; Australian Government Research Training Program Scholarship ; UQ-Centennial Scholarship ; ARC ; National Natural Science Foundation of China
DOI10.1038/s41467-020-15993-4
Indexed BySCI
Language英语
Funding ProjectAustralian Research Council ; Australian Government Research Training Program Scholarship ; UQ-Centennial Scholarship ; ARC ; National Natural Science Foundation of China[51629201] ; National Natural Science Foundation of China[51825204]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000531425700010
PublisherNATURE PUBLISHING GROUP
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139211
Collection中国科学院金属研究所
Corresponding AuthorWang, Zhiliang; Liu, Gang; Wang, Lianzhou
Affiliation1.Univ Queensland, Australian Inst Bioengn & Nanotechnol, Nanomat Ctr, Brisbane, Qld 4072, Australia
2.Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia
3.China Univ Petr East China, Coll Chem Engn, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Collaborat Innovat Ctr Chem Energy Mat iChEM, State Key Lab Catalysis, Dalian 116023, Peoples R China
5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
6.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Hu, Yuxiang,Pan, Yuanyuan,Wang, Zhiliang,et al. Lattice distortion induced internal electric field in TiO2 photoelectrode for efficient charge separation and transfer[J]. NATURE COMMUNICATIONS,2020,11(1):10.
APA Hu, Yuxiang.,Pan, Yuanyuan.,Wang, Zhiliang.,Lin, Tongen.,Gao, Yuying.,...&Wang, Lianzhou.(2020).Lattice distortion induced internal electric field in TiO2 photoelectrode for efficient charge separation and transfer.NATURE COMMUNICATIONS,11(1),10.
MLA Hu, Yuxiang,et al."Lattice distortion induced internal electric field in TiO2 photoelectrode for efficient charge separation and transfer".NATURE COMMUNICATIONS 11.1(2020):10.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Hu, Yuxiang]'s Articles
[Pan, Yuanyuan]'s Articles
[Wang, Zhiliang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hu, Yuxiang]'s Articles
[Pan, Yuanyuan]'s Articles
[Wang, Zhiliang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hu, Yuxiang]'s Articles
[Pan, Yuanyuan]'s Articles
[Wang, Zhiliang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.