A comparative study of the density of surface states in solid and hollow TiO2 microspheres

doi:10.1039/c8qi00633d

HFCAS OpenIR > 应用技术研究所

	A comparative study of the density of surface states in solid and hollow TiO2 microspheres
	Gao, Chun 1,2; Peng, Yu-Qi 1,2; Hu, Lin-Hua1 ; Mo, Li-E1 ; Zhang, Xian-Xi 3; Hayat, Tasawar 4; Alsaedi, Ahmed 4; Dai, Song-Yuan 1,5
	2018-09-01
发表期刊	INORGANIC CHEMISTRY FRONTIERS
ISSN	2052-1553
通讯作者	Hu, Lin-Hua(lhhu@rntek.cas.cn) ; Mo, Li-E(lemo@rntek.cas.cn) ; Dai, Song-Yuan(sydai@ncepu.edu.cn)
摘要	As a crucial photoelectric material, TiO2 microspheres have been widely applied as photoanodes in photovoltaic devices owing to their large surface area, suitable pore size and prominent scattering effect. However, surface states in the TiO2 films playing a significant role in the charge transport process are an important factor influencing the photovoltaic performance. Herein, solid and hollow TiO2 microspheres were compared to investigate the influence of the density and distribution of surface states. The density and distribution of surface states, charge recombination process and band edge shifts were investigated. The results showed that the density of surface states of the TiO2 microspheres decreased after recrystallization, leading to a suppressed charge recombination rate. Moreover, owing to the hollow architecture, recrystallized hollow microspheres (rHM) have higher photon utilization. As a result, a photoelectric conversion efficiency of dye-sensitized solar cells based on the rHM up to 10.57% was obtained.
DOI	10.1039/c8qi00633d
关键词[WOS]	SENSITIZED SOLAR-CELLS ; BAND-EDGE MOVEMENT ; ELECTRON-TRANSPORT ; CHARGE-TRANSPORT ; SCATTERING LAYER ; ANATASE TIO2 ; RECOMBINATION ; EFFICIENCY ; SEMICONDUCTORS ; NANOPARTICLES
收录类别	SCI
语种	英语
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] ; 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]
项目资助者	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研究方向	Chemistry
WOS类目	Chemistry, Inorganic & Nuclear
WOS记录号	WOS:000445217200025
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/39221
专题	应用技术研究所
通讯作者	Hu, Lin-Hua; Mo, Li-E; 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, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 3.Liaocheng Univ, Shandong Prov Collaborat Innovat Ctr Chem Energy, Liaocheng 252000, Peoples R China 4.King Abdulaziz Univ, Fac Sci, NAAM Res Grp, Dept Math, Jeddah 21589, Saudi Arabia 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,Peng, Yu-Qi,Hu, Lin-Hua,et al. A comparative study of the density of surface states in solid and hollow TiO2 microspheres[J]. INORGANIC CHEMISTRY FRONTIERS,2018,5(9):2284-2290.
APA	Gao, Chun.,Peng, Yu-Qi.,Hu, Lin-Hua.,Mo, Li-E.,Zhang, Xian-Xi.,...&Dai, Song-Yuan.(2018).A comparative study of the density of surface states in solid and hollow TiO2 microspheres.INORGANIC CHEMISTRY FRONTIERS,5(9),2284-2290.
MLA	Gao, Chun,et al."A comparative study of the density of surface states in solid and hollow TiO2 microspheres".INORGANIC CHEMISTRY FRONTIERS 5.9(2018):2284-2290.