HFCAS OpenIR  > 应用技术研究所
Engineering surface states and band edge of TiO2 microspheres by tuning pH value of hydrothermal treatment
Gao, Chun1,2; Ding, You-Cai1,2; Mo, Li-E1; Li, Zhao-Qian1; Shi, Xiao-Qiang5; Hu, Lin-Hua1; Hayat, Tasawar3,4; Alsaedi, Ahmed3; Dai, Song-Yuan1,5
2018-09-01
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume283Pages:1231-1237
Corresponding AuthorHu, Lin-Hua(lhhu@rntek.cas.cn) ; Dai, Song-Yuan(sydai@ncepu.edu.cn)
AbstractHerein, TiO2 microspheres were synthesized at different pH values. The effects of pH values on surface states and charge transport performances were investigated. It is noted that alkaline environment leads to a negative band edge of TiO2 microsphere and promotes the interfacial charge transfer. Meanwhile, the charge recombination in the TiO2 microspheres was effectively suppressed in alkaline environment. Besides, TiO2 microspheres synthesized in alkaline condition contained less surface states, which is beneficial to a higher charge collection efficiency and longer diffusion length in dye sensitized solar cells (DSSCs). Moreover, a better crystallinity of TiO2 microspheres can be obtained in an alkaline environment. As a result, when these TiO2 microspheres were used in DSSCs, the device with the TiO2 synthesized at pH = 8 showed the highest performance than that of the device based on TiO2 synthesized in lower pH values. (C) 2018 Elsevier Ltd. All rights reserved.
KeywordTiO2 microspheres Surface states pH values Charge transfer
Funding OrganizationNational High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology
DOI10.1016/j.electacta.2018.06.204
WOS KeywordSENSITIZED SOLAR-CELLS ; ELECTRON-TRANSPORT ; INTERFACIAL TRANSFER ; CHARGE-TRANSPORT ; NANOTUBE ARRAYS ; BACK-REACTION ; RECOMBINATION ; EFFICIENCY ; FILMS ; SPECTROSCOPY
Indexed BySCI
Language英语
Funding ProjectNational High Technology Research and Development Program of China[2015AA050602] ; External Cooperation Program of BIC, Chinese Academy of Sciences[GJHZ1607] ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology[2016FXZY003]
Funding OrganizationNational High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; National High Technology Research and Development Program of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; External Cooperation Program of BIC, Chinese Academy of Sciences ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000441077900133
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/37835
Collection应用技术研究所
Corresponding AuthorHu, Lin-Hua; Dai, Song-Yuan
Affiliation1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
3.King Abdulaziz Univ, Fac Sci, Dept Math, NAAM Res Grp, Jeddah 21589, Saudi Arabia
4.Quaid I Azam Univ, Dept Math, Islamabad 44000, Pakistan
5.North China Elect Power Univ, Beijing Key Lab Novel Thin Film Solar Cells, Beijing 102206, Peoples R China
Recommended Citation
GB/T 7714
Gao, Chun,Ding, You-Cai,Mo, Li-E,et al. Engineering surface states and band edge of TiO2 microspheres by tuning pH value of hydrothermal treatment[J]. ELECTROCHIMICA ACTA,2018,283:1231-1237.
APA Gao, Chun.,Ding, You-Cai.,Mo, Li-E.,Li, Zhao-Qian.,Shi, Xiao-Qiang.,...&Dai, Song-Yuan.(2018).Engineering surface states and band edge of TiO2 microspheres by tuning pH value of hydrothermal treatment.ELECTROCHIMICA ACTA,283,1231-1237.
MLA Gao, Chun,et al."Engineering surface states and band edge of TiO2 microspheres by tuning pH value of hydrothermal treatment".ELECTROCHIMICA ACTA 283(2018):1231-1237.
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