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	Understanding the anatase-rutile phase junction in charge separation and transfer in a tio2 electrode for photoelectrochemical water splitting
	Li, Ailong1,2; Wang, Zhiliang1,2; Yin, Heng1,2; Wang, Shengyang1,2; Yan, Pengli1,2; Huang, Baokun1; Wang, Xiuli1; Li, Rengui1; Zong, Xu1; Han, Hongxian1,3
刊名	Chemical science
	2016
卷号	7期号:9页码:6076-6082
ISSN号	2041-6520
DOI	10.1039/c6sc01611a
通讯作者	Han, hongxian(hxhan@dicp.ac.cn) ; Li, can(canli@dicp.ac.cn)
英文摘要	New insight into junction-based designs for efficient charge separation is vitally important for current solar energy conversion research. herein, an anatase-rutile phase junction is elaborately introduced into tio2 films by rapid thermal annealing treatment and the roles of phase junction on charge separation and transfer are studied in detail. a combined study of transient absorption spectroscopy, electrochemical and photoelectrochemical (pec) measurements reveals that appropriate phase alignment is essential for unidirectional charge transfer, and a junction interface with minimized trap states is crucial to liberate the charge separation potential of the phase junction. by tailored control of phase alignment and interface structure, an optimized tio2 film with an appropriately introduced phase junction shows superior performance in charge separation and transfer, hence achieving ca. 3 and 9 times photocurrent density enhancement compared to pristine anatase and rutile phase tio2 electrodes, respectively. this work demonstrates the great potential of phase junctions for efficient charge separation and transfer in solar energy conversion applications.
WOS关键词	PHOTOCATALYTIC ACTIVITY ; SOLAR-CELLS ; THIN-FILMS ; BAND ALIGNMENT ; SURFACE ; RAMAN ; SPECTROSCOPY ; TRANSFORMATION ; NANOMATERIALS ; PERFORMANCE
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000382488500057
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2375665
专题	中国科学院大学
通讯作者	Han, Hongxian; Li, Can
作者单位	1.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Collaborat Innovat Ctr Chem Energy Mat iChEM, Xiamen, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Li, Ailong,Wang, Zhiliang,Yin, Heng,et al. Understanding the anatase-rutile phase junction in charge separation and transfer in a tio2 electrode for photoelectrochemical water splitting[J]. Chemical science,2016,7(9):6076-6082.
APA	Li, Ailong.,Wang, Zhiliang.,Yin, Heng.,Wang, Shengyang.,Yan, Pengli.,...&Li, Can.(2016).Understanding the anatase-rutile phase junction in charge separation and transfer in a tio2 electrode for photoelectrochemical water splitting.Chemical science,7(9),6076-6082.
MLA	Li, Ailong,et al."Understanding the anatase-rutile phase junction in charge separation and transfer in a tio2 electrode for photoelectrochemical water splitting".Chemical science 7.9(2016):6076-6082.

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