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Engineering surface states and band edge of TiO2 microspheres by tuning pH value of hydrothermal treatment

文献类型：期刊论文

作者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
刊名ELECTROCHIMICA ACTA
出版日期2018-09-01
卷号283页码:1231-1237
关键词TiO2 microspheres Surface states pH values Charge transfer
ISSN号0013-4686
DOI10.1016/j.electacta.2018.06.204
通讯作者Hu, Lin-Hua(lhhu@rntek.cas.cn) ; Dai, Song-Yuan(sydai@ncepu.edu.cn)
英文摘要Herein, 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.
WOS关键词SENSITIZED SOLAR-CELLS ; ELECTRON-TRANSPORT ; INTERFACIAL TRANSFER ; CHARGE-TRANSPORT ; NANOTUBE ARRAYS ; BACK-REACTION ; RECOMBINATION ; EFFICIENCY ; FILMS ; SPECTROSCOPY
资助项目National 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]
WOS研究方向Electrochemistry
语种英语
WOS记录号WOS:000441077900133
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构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 ; 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 ; 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 ; 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 ; 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 ; 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 ; 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 ; 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 ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; 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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 ; 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 ; 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 ; 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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 ; 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 ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/37834]  
专题合肥物质科学研究院_应用技术研究所
通讯作者Hu, Lin-Hua; Dai, Song-Yuan
作者单位1.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
推荐引用方式
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.

入库方式： OAI收割

来源：合肥物质科学研究院

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